We did YCombinator, which could be described as an "access" play, but apart from that, every time someone has offered us access to something in return for something else, we've always politely declined and then just gone and won the business or relationship on our own merits.
Gatekeepers suck, and doing business with gatekeepers leads startups to doing sucky things and pulls them down as well.
The minute I read him deciding to do a second accelerator so he could get access to "his vertical" I started getting a sinking feeling in my stomach.