I agree, further accommodations would be great and resolve a difficult/confusing situation. Until then, there are certain places the SSPX can go that the FSSP cannot.
Also one of the issues is that the FSSP still have no bishop. If appointed one, this would hopefully ease some of the trepidation the SSPX have.
Yeah... I was trying to express that the SSPX weren’t necessary unreasonable in their refusal to be accommodated, because I remember thinking that one or more of their “demands” (I hate that that makes them sound like terrorists or union negotiators) were quite reasonable. I think that’s one of them: without an ordinary (a bishop is the ordinary of a particular diocese), FSSP remain largely at the will of outsiders to their organization.