I for one kindof think it does matter. If the Society turned him away, it would be interesting to know why. If he changed his mind, it would be interesting to know why. This might shed some light onto the state of affairs between Rome and the SSPX.
You are nitpicking and quoting the Bishop out of context. Here is what he actually said:
"And so the loving encounter between Rome’s bishop and the Society’s school was called off. Was it Rome, or the Society, or both, that had cold feet at the last moment? We do not know. It does not matter. What matters is to see clearly the never ending conflict between God’s reality and men’s false dreams, and to prefer God’s reality."
NOTE that he didn't say, "It makes no difference", "it is completely uninteresting", "It wouldn't shed any light on anything", or "I wouldn't even be curious to know." For more on the major difference between "Makes no difference" and "Does not matter", please see a separate thread:
https://www.cathinfo.com/catholic-living-in-the-modern-world/does-not-matter-vs-makes-no-difference/He's advocating that we focus on the big picture: that the Conciliar Church and the Catholic Faith are irreconcilable. This breakup, in the end, is just ONE MORE example of this. He is absolutely right. It had to break up one way or the other. And if this deal hadn't been called off, ONE or THE OTHER would have had to radically change -- either giving up Conciliarism, or giving up (traditional) Catholicism. Because the two are less capable of mixing together than fire and water.
Either the SSPX's flickering fire of tradition would have been extinguished by the abundance of Huonder's conciliar water, or his conciliar water would have been evaporated by the superior force of the SSPX's traditional fire. But the fire and water could not have co-existed for long. Of necessity, one would have had to extinguish the other.
I, personally, hate it when people put words in my mouth, make assumptions, or jump to conclusions. Especially since I'm a tell-it-like-it-is sort of person. When people jump to a conclusion, I'm insulted because I don't beat around the bush! If I meant to say X, I would have said X! I'm not shy about stating my mind.
Neither is Bishop Williamson. He is a master of English; I'm sure he chooses his words with as much premeditation as I do -- if not more so.