I wanted to know if the different protagonists were still thinking the same way, a month later
Flash actually didn't improve as much as I expected (yet); we'll see if GenCon brings new tech to that archetype. That being said, it still has an enormous distorting effect on the format. It's slightly different than ichorid in that when it gets 'the' draw, Flash resolving immediately ends the game, whereas dredging has some variance to it which will give you meaningful extra turns. Also, as Shockwave mentioned, the usual bulwark against this type of deck, FoW, is rather ineffective.
Ichorid is something I hate playing against, but I do think it's strangely healthy. Kowal mentions in his D2 Stratford that he had really interactive games while playing it; I believe him. Ichorid allows non-ichorid hate decks a metagame advantage over the usually dominant blue based combo control deck (see tog, slaver, gifts, gat). Evidence of this was bomberman's performance earlier this year.
Is the format faster? Unequivocally, yes. However, I think Flash is much more the culprit than either GAT or Ichorid. Like was mentioned above, I think the best evidence of this is 1cc answers like REB, Spell Snare, and Stifle showing up a lot.