That's is kind of the point. GW keeps establishing core rules/design principles, usually with a big fanfare about how they finally "streamlined X" or "simplified Y" and now it's "really balanced and consistent across all armies. Really you can trust us this time guys.". Only to then promptly proceed to break them for a subset of factions/units for no apparent reason in the very next release, much like
@Killer Angel said earlier. Occasionally this causes a a big enough cascading effect that requires other factions to get updates to catch up. Which eventually translates into new core rules/design principles which slowly get implemented in new tomes/new GHB/a new edition, only for the whole spiel to start all over once it's finally become consistent again.
And as they keep doing that the game moves further away from what it originally was. That isn't necesarly bad, it's just different.
Will AoS survive those changes? Probably. Will it be better for it? That's mostly a matter of personal preference. But it definitely won't be the same, and that can be a shame if the original core-gameplay is changed too much over time. And let's be real, AoS 3.0 is very different from 1.0, or 2.0 or even the state the game was in 2.5. Different enough that you might have a preference for a particular edition and dislike the others. And with this change AoS 3.0 has already taken the first small steps on the road to AoS 4.0, which is hilarious as it's barely a few months old.