As I said here, as long as people like Fr. Longenecker, Patrick Madrid, Simcha Fisher, Steven Greydanus, and other celebrities of the Internet Catholic Apologetics world continue to give high fives to Mark Shea, who in my opinion has become nothing other than a Catholic version of Jack Chick, they have no reason to launch salvos at arbitrarily chosen targets like The Remnant.
As for the argument at hand, I'm not saying I agree with The Remnant or would always take its side. Truth be told, I don't visit there much. Who knows? Maybe everything Fr. Longenecker said about The Remnant, how it compares to the worst stereotypes of Protestant Fundamentalism, and why it's a problem, is spot on accurate.
My issue is that many of the same complaints could be said about Mark Shea. I don't mean these people have to call out Mark if they are good friends and buddies. Though truth be told, if I was Mark's friend or buddy, I'd do everything in the world to call him out to stop and change what he has become. That's up to them.
But can they please stop running around denouncing Trump here, and Rad Trads there, and over there the dreaded Fundamentalists? Almost nothing they say about those individuals or expressions of Christianity couldn't easily be said about Mark and so many of his followers. If they aren't going to call out Mark, then they should keep silent about the subject altogether. If, however, they feel compelled to step forward and offer what they feel is just criticism, that's fair. But make sure it's done across the board and includes all - and I mean ALL - noteworthy examples.
Otherwise, they themselves could become guilty of one of the things they are quick to condemn various 'fundamentalists' for, and that's cherry picking the truth at hand. And nothing says 'opinion over truth' faster than cherry pickers. That's something I learned in dealing with Protestant Fundamentalists, BTW.