Yeah, from what I have read and from sisters who are in the LCWR, I think the radical ones are in the minority. It would be good if they can't respond to the Magesterium appropriately that they let those who want to, so do.
And it is interesting about the idea that there's no such thing as too conservative, but are they really being conservative if they aren't in alignment with Rome? Or are they just being stubborn? Not saying, just asking.
I think they're more conservative in the sense that they're resisting change in favor of the past to the nth degree. It's like being "more Catholic than the pope." I think in relation to the rest of our society, Catholics are definitely more conservative, but being "conservative" in itself is a morally neutral thing. And maybe that's why I see many Catholics being more comfortable with being lumped in the conservative category - it's because we're so used to it. But I think the SSPX is a perfect example of what it's like to be too conservative - they're so conservative that they're resisting any changes that Vatican II brought, even though those changes are deeply rooted in important parts of our Tradition. Being stubborn is kind of a part of being conservative.

It's not always a bad thing. But in the case of the SSPX, it is.
I think it's sorta like...Okay, a family going for a walk in the park. The parents are treading along at a nice pace, and they know exactly where they're going on the trail. Some of the kids want to run ahead a bit, others are dawdling behind. If the kids running ahead get too far, the parents have to call out for them to stop, come back, or they might get lost or take a wrong turn. If the kids walking behind are too slow, everyone has to stop and "encourage" the slow kids to keep up. In my experience, it's easier to reign in the kids that are running ahead than it is to motivate the kids walking behind to go a little faster.
Or maybe my family just spent too much time in wooded parks when I was a kid.