I'll try to give what insight I can about DRC since I'm at those meetings.
Troy has a lot of conspiracy theories for anyone he doesn't agree with. Most of what he's saying is pure conjecture, other than what is true of Cheryl's campaign.
Alex Hryciw, former chair of DRC, stepped down be involved in Cartmell's campaign, yes. She did that so there wasn't a conflict moving forward with DRC. Yes, there are people at that table that support Cartmell's bid I'm sure. Everyone there just wants to help improve Downtown, DRC itself tries to stay out of any direct support of any candidate. I would hope that most people who want to be involved in any election process would do it.
The DRC has pretty much EVERY major Downtown private or institutional stakeholder on it. Currently at 37 members. Many of these members have way better ties to the provincial government than our Council does, which is why they can get things done, like police officers to Downtown. Whether or not you like the UCP, constantly blaming them for things like our mayor does is not a way to get what you want imo.
Closing all 5 bridges to Downtown at once will have an effect, everyone that cares about Downtown should be concerned.