I don't think we will get level 5 anytime soon. In 5e level 5 is a huge jump in power for all classes, and I think the whole point of EA is to iron out things and collect data/feedback on early level play. Similar to what they did with DOS
All true, but I think it's a little more troubling than you're giving it credit for.
That so much seems to thoughtlessly diverge from 5E before the first significant power spike, and that several delays were necessary before Larian could release what should be a relatively thoughtless exercise in game balance on an existing engine (I think most experienced DMs could design a fair level 1-4 campaign in their sleep) doesn't bode well for the future.