I think this is very promising. This team seems to have some of the people who have the clearest thoughts in the world about acausal interactions. I've asked several people who I trust a lot in this space and gotten universally positive references about the team.
My main concern is that thinking about acausal interactions is extremely difficult (meaning that zero progress is somewhat likely) and sign uncertain (so, even if they did make progress, it's not clear this would be net helpful). Overall, my view is that it still seems good to have some people working on this, and I trust this team in particular to be thoughtful about the tradeoffs.
Also, this type of work doesn't get funded by OP.