Good points!
I wonder if the SOCIT officers were there simply as back up for "what ifs" as to why they were on the perimeter.
Though they (LE team overall) must have certainly been collectively aware enough to "know the minds of the people they were dealing with", so they brought SOCIT officers along...
IMO, it was appropriate for LEO(s) in charge of executing the warrant based on their "risk assessment" which led them to staging the LEOs that way.
As in, they did not anticipate such a violent reaction upon entry as they decided to do it, partially because perhaps they knew he wasn't "allowed" to be in possession of firearms IIRC, and didn't know he may have made his own or gotten possession of one illegally, if their intel which they relied on indicated otherwise.
And/or they had sussed out who was known to be living there and around the place, and had no intel there was anyone besides him and his family living there, or thereabouts who were armed and/or violently "in league with him". It was just him, his wife and kids, so a family sitiation for whom they would need to consider their safety as well, and enter with a crowbar and not guns to face off with an a known armed individual(s).
My take on it, for what it's worth, is that they knew enough about him to be very wary & have specially trained LE there for backup.
Because they (LE team) were there to serve a warrant for non-firearm related charges, historic sexual abuses of minors, and knew there was a chance things could turn violent just the same, so came prepared for that with SOCIT officers onsite behind them...
It was his off the charts much crazier & much more violent response to being served for child abuse charges than anyone could have anticipated, on the whole of the matter.
It may have gone something like this, IMO:
We have sufficient evidence to serve a warrant on him for historic child abuse. He lives alone with his family, his wife & 3 kids, an infant, and older daughter and son. He isn't in possession of firearms through our best known intel. He hasn't had any recent run ins with the law. He has a history of being anti-government & self claims he is a sovereign citizen and is living "off grid" but he & his family are collecting public assistance/are "on the dole". He may have or has made threatening statements towards LE (perhaps on SM) in the past, but does not appear to be actively living in a compound type situation with other sov cits of late. He is living with his family & posts pics of himself as a native living in nature & doing his own thing. No one in the area has filed complaints against him about his lifestyle or threatening behavior in public. He is for all intents & purposes a "family man" living on the dole & off grid. We've received reports historically of his alleged sexual abuse of minor females and/or indecent ecposure, and he has a daughter he has access to in their isolated living circumstances, and people are talking about him & wondering if he is going off the rails of late & females around him are safe. It's time to serve him a warrant to assess the safety of females around him, minors in particular, and bring him in for questioning. It could be he has a hair trigger temper, and will not want to come in for questioning willingly and stand his ground in unanticipated ways, or will try to run from us to avoid facing these charges. He doesn't have a job or go regularly out in public, so we can't serve him except at his home out there in the boonies. So based on these known facts & our risk assessment, we'll have 3 LEOs approach his domicile and announce the reasons for the warrant as required by law. And if he doesn't appear and no one else says a peep (his family members) or comes out or appears to be there and responsive, we'll take a crowbar to the window to gain entry and see if anyone is in there. And have 7 SOCIT officers on the perimeter of the property in case he tries to flee or reacts angrily or violently and the 3 LEOs need to call for backup.
JMO