Yes, Tyler was leaning into Feelers, that's what happens when you rub the wheel in front of you. If you rub the left of the wheel in front of you the inertia of your movement will stop and you will be leaning to the right. But, your natural tendency to steer to the right to correct can't happen because you are stuck on the left of the wheel ahead. Then, you end up leaning over to the right with no way to correct or get straight.
If you are riding with just one other person you fall over on your right side. If you are in a pack you fall on the person to your right - I'm surprised Bob Roll never experienced this.
Actually there was a fair amount of discussion about this the day after Tyler's fall. I think it was Bob Roll who mentioned he suspected Tyler's wheel rubbed the wheel in front of his.
I wish I could give you better information about this discussion... I've only been able to catch The Tour in bits and pieces this year unfortunately.
We'll be traveling again starting mid-week. I may end up missing the rest of The Tour, unless our hotels carry the NBC Sports channel... :-(