Drafting the first 10 cards adds 5 mins if you’ve played before, not 30, and IMHO it’s necessary to make some corporations playable at all. Maybe add 10 mins if you’ve got someone with serious AP playing, but I wouldn’t blame that on the game...
It’s true that drafting adds probably half an hour to the total length of the game, but honestly I wouldn’t play without that anymore that I would play Agricola without it. TM is a long-ish game, and that’s a very valid complaint, but it’s not a game for everyone, and that’s fine. I personally find the decision/time ratio acceptable, and draft makes it less luck-dependant, which is good in a game this long.