I don't actually think 35 minutes is a bad limit. I've played quite a few games at this point including in two tournaments and I've never hit 35 minutes. That's with mill vs. mill and mill vs. control/aggro. That's about as slow as you can get. Going to time is a player issue, not a game mechanic issue.
Well, the game is played with players, and if players are slow, it's an issue.
It IS an issue, sadly.