Would this be a fair distillation of the big set of pros and cons listed here: See if I got these right, want to engage but first want to be sure I grasp it and don’t oversimplify:
I’ll start with the easy and shorter bit the “pro or benefits” section you mentioned.
Pro: users on both sides of the Meta/non-Meta Fediverse could have a larger social graph and connect with friends or accounts they otherwise would miss.