Having been an altar boy for the first SSPX priest and I still go to SSPX, I'd say that makes me an SSPX old timer and with all due respect, I have no idea what you are talking about.
Many splits have occurred within the SSPX since the time the SSPX was established - the first priest left because the weight of responsibility became too heavy, the second SSPX priest left after only a few years due to a power struggle / disagreement with +ABL, he left and has been in Colorado for decades. His replacement(s) got so fed up with what was happening within the Church that they became sede and convinced many to split away from the SSPX with them - and on and on it goes even today. Today is no different - those in charge are causing the crisis within the SSPX.
You must remember that the people are the victims, not the cause - it is the priests and their superiors who are responsible to see to it that the SSPX is held together so it can grow in the faith - they are the ones who are the cause of splits and today's batch of bs happening within the SSPX right now, not SSPX old timers - "SSPX old timers" might possibly be the cause of idle gossip and such, but beyond that, there is very little if anything they can say or do that could possibly even begin to be the cause of what is going on today.