Secondly, it's a sign that SSPX considered this state of the Church to be a "new normal" rather than an aberration, where once it had passed, those many thousands of churches and dozens of seminarians that make what SSPX have pale by comparison ... would return to Catholic. SSPX have given up on the notion that this state is an aberration.
This point hasn't been brought up before, but needs to.
Anything on the topic of "what the SSPX stood for" and how it's changed now. It's hard to put into words all the things the SSPX was, what it stood for, it's attitudes and outlook on the world, etc.
But this is a KEY piece of the puzzle. They never considered the post-Vatican II takeover to be something we'd have to "deal with" moving forward. No, we always considered that the Church eventually would convert (the Restoration), Vatican 2 would be thrown out, and there would be a return to Tradition. Many corollaries flow from that, including "we don't need to build all the churches/seminaries to hold that flood of new Trads post-Restoration" because yes, there will be PLENTY of seminary buildings and churches to hold all the Trads --
but only once the Crisis is REALLY over. That's the key point.
But you see, if the war in fact continues, if the Crisis is NOT in fact ending, then
A) the neo-SSPX "peace deal" (whether a signed deal, or a de-facto change. We have seen the latter) is more like a SURRENDER. When you lay down your arms while the war continues, that is literally the definition of surrender.
B) The SSPX would have to build its own buildings to accommodate a "bump" of people after the surrender, because it's not like they're magically going to get access to Novus Ordo parish churches, seminaries, etc. -- because the Crisis hasn't ended yet, hello!
This is a very important point.
The SSPX *could* rightfully expect to get access to previously Novus Ordo real estate to help rebuild Tradition -- after the Restoration. But they can't expect such generosity BEFORE said Restoration. They are living in fantasy land now, where the Crisis is over in their hearts, but it's not really over. So if they want to be able to welcome the bump or "flood" of new people, they're going to have to build their own buildings. And, of course, those "new people" are just going to be Indulters who were scared (read: cowards) of the labels the SSPX always endured by being faithful over the past decades. NOT the same kind of people who will return to Tradition after the great Restoration.
Related:
https://www.cathinfo.com/crisis-in-the-church/tell-me-why-indulters-aren't-cowards-and-or-ignorant/