It all makes sense
I still think that even if the rest of EG thinks it was the "right" decision, I think it will show in the future that it was the wrong decision. If EG starts performing poorly in upcoming tournaments then we will see this. The common saying is "Don't mess with success", but I feel like it applies even moreso here. I mean, they won a TI with that team, why change things? We may never know all the reasons why, but just looking at what we do know, it really doesn't make much sense.
They could start performing terribly for a number of reasons. Maybe 6.85 comes sooner than we think and fucks up their playstyle. Maybe people figure out how to beat SumaiL's mid. Maybe, as is often the case, they peak after winning TI and without that motivation to keep them going they get content, don't put the heart into practice they should, and peter out, just like every team who's won a TI has (with the arguable exception of Na'Vi, who made TI finals twice). "Don't mess with success" is a bad idea when it means becoming content while every other team still has the drive and motivation to overtake you. "They won a TI" is the exact reason, I think, they should change things. You're right in that we'll never know now whether them peter(pan dam)ing out would have happened, but I'm guessing EG wanted to avoid finding out.
Sucks for Aui, obvs, and I don't disagree that he won them TI to some extent, but how long does that last? How long until people start figuring out Naga/Techies? How long do those characters stay as strong in the meta? Aui's obviously a talented player and could adapt, but we could say that about several players. I think Aui's stronger than a gimmick pick, but maybe not with EG. So I think changing a winning lineup is something more teams should do. The game, the meta, the scene, is too fluid for them not to.
far more than any journalist or enthusiast in the scene
I resent that