@nedleeds Either Misstep stops 1-ofs from being considered during deckbuilding OR it isn't that game-warping. You need to choose one.
You can't say Misstep warps the whole metagame around it and then also say that 1 mana cards weren't that important to the metagame in the same argument.
I'm not saying 1 mana cards aren't important I'm saying they either aren't played because they cost mana and Misstep doesn't. That's it really. The historic presence of 1 drops in competitive decks is a confluence of many factors. But currently non defensive grid blue deck building has been reduced to 52 cards minus other restricted stuff and cantrips. This means that by the time you get around to adding those 1CMC cards and the Missteps to not make their inclusion a complete waste of cardboard you have run out of space. Everyone plays it because it's incestuous. It's terrible and a blight on the format just as it was everywhere else.
Your argument that losing to Ancestral isn't good for type 1 is certainly valid though like most play pattern arguments (like one of the charges I level against Misstep) highly subjective. Watching 2 players trade Missteps is dumb, dulling and just as random as having a restricted card. I've accepted the chance of getting Vintaged by the original mistakes long before Misstep was printed. There's still the same chance of having your 1 Misstep as they having their 1 Ancestral, also we might see the prior solutions to Ancestral see play again like Misdirection which has been squeezed out. Also Misdirection replacing a Misstep or 2 would ensure blue stew decks keep that miserable game 1 matchup versus shops that they so cherish.