Ok, let's make this a bit more structured.
I'll use numbers so we can discuss single points more easily.
1. Does teleporting (removing and setting up a unit) generally count as movement?
We don't know for sure, but IMO the rules point to no. Here is why:
a. Moving out of combat is a retreat. The FAQ clarified though that teleporting out of combat does not count as a retreat. So that might mean that teleporting out of combat is not moving out of combat. That might mean it isn't moving.
b. There are a few units that can set up near enemy units. Most of them can't (because their abilities say so) but those who can (Shadowblade Assassins, Skaven Assassins, Chameleon Skinks) are not restricted by the rules of moving.
Now, with AoS2 warscroll take precedence over core rules anyway, so even if they were in conflict with some movement rule, they could still act the way they do.
c. The rules and FAQs (Core rules page 2 for example) often say "set up or move", so that is another point saying that they are not the same.
The old FAQ (v1.2) even explained what setting up is and how it is not movement.
d. The new core rules (page 229 of the core book) clarify movement a bit, they say that movement can happen in the movement phase, the charge phase, and the combat phase. So they explicitly say that charging and piling in is movement.
2. Does LoSaT specifically count as movement:
Well, yeah, it says so. The first interpretation of a rule has to be the literal wording, and it says so.
So while the usual restrictions for movement don't apply (doesn't count as retreat, doesn't use move characteristic, has to be placed 9" away from enemies instead of 3" and so on, things that affect ALL movement will also apply to LoSaT.
3. There are a few examples to look at:
Astrolith Bearer
Can an Astrolith Bearer plant his standard and then teleport? Well, it seems it has been played that way in official GW tournaments since LoSaT was introduced. The Astrolith Bearer's "Celestial Conduit" ability says that you may not move this model (it doesn't specify a phase).
So.... have players been doing that wrong the whole time and nobody complained?
Of course you could get around it to a certain degree. "Celestial Conduit" doesn't say when in the hero phase you have to plant it, so the
result would be the same in most cases if you just teleported the Astrolith Bearer and then planted.
Saurus Guard in an Eternal Starhost
If they don't move they get extra damage on their weapons. LoSaT counts as move so they don't get it.
4.
Sooo, what about our Balewind Vortex?
Its warscroll says it "cannot move". The core rules say movement is the stuff that happens in the movement phase, charge phase, and when piling in. It does not mention the hero phase. LoSaT happens in the hero phase.
Is it 100% clear? Hell, no. But it has a direction IMO.
5. What did they intend when writing the rules?
Well... they obviously didn't want the guy on the BWV to walk around or fly. But moving the whole thing by magical means? Not so sure.
And LoSaT? The idea obviously is that you cannot walk or fly around unless you roll a 5-6. The wording they used "this counts as the unit's move for the next movement phase" is... meh. It would have been clearer if they had just written "The unit may not move in the next movement phase"
6. But what about the 5-6 result. How do we put this mess together?
Well, here we are saved by the core rules, which say that warscroll abilities take prcedence over core rules. The BWV warscroll says it cannot move, LoSaT is an ability straight out of the core rule book. So even if it says 5-6 allows movement, the BWV saying it cannot move wins.
Bottom line: I changed my opinion a bit. I still say that generally speaking teleporting and similar stuff in the hero phase is not necessarily moving, but LoSaT probably is.
I would now say that unless clarified further by GW, LoSaT indeed is not intended to work with a wizard on a BWV because I think that
- the intention of the BWV was that it shouldn't move by any means
- LoSaT is meant as a special way of movement
7. So is the sky falling now?
No, it means two things:
- It makes the BWV a bit worse, since you have to cast it after teleporting instead of before teleporting.
- It makes the Astrolith Bearer slightly worse since you cannot use him to buff your wizards and then teleport him away to buff your other stuff with rerolls. You have to teleport him, and then plant the Standard.
But....
The new warscroll for the Astrolith Bearer in the app makes it even weirder, because it doesn't even say planting the Astrolith prevents moving anymore.
Fun times.... GW, get your s*** together...