I don't think so. If it didn't work out you can add solos in later anyway and get a big player boom from all the people that wanted that.

What they couldn't do is take solos out after they'd already put it in. It was a significant strategic error to launch it like that.

The "but they're sweatlords" argument doesn't sit with me. The biggest complaint people have about the game is that it's made by washed up MvC oldheads who made a sweatfest that only appeals to EVO players.