I readily admit that brief, single paragraph answers don't always explain points to satisfaction, but I read every question and, at least to me, every response made perfect sense.
I think one of the things they're saying here is that for a good portion of any given season a player's visible rank may be significantly lower than their skill, and below the rank they will eventually achieve over time. They just haven't finished climbing the ladder yet. Which is why they absolutely cannot match based strictly on visible rank. I don't know where it is they start last season's predators, but I've certainly played matches where it seemed like they let those preds reset to rookie. No legit rookie player should be matched against high-tier players just because those high-tier players haven't maxed out their grind yet. Does that make sense?
Ranked IS a time grind, not a skill grind. Period. They can claim all day long that they're looking into that, but they won't change it because their primary objective is to keep you playing, not to give you an accurate rank in a single afternoon.
The part about matching players of seemingly dissimilar skill onto the same squad... it's true. They do this and they always have. And their answer was 100% correct. Skill in this game can be defined in many different ways, or as an amalgam of many different skills or abilities or experience. Play style deltas are HUGE in this game. If you're the player that watches a couple of aggressive and cheating streamers and genuinely believes that that's how you should play the game, how you HAVE to play the game, then you will have this experience a lot: you think your squadmates are idiots because they don't have your back, won't drop into your chosen dumpster fire, won't rotate with you, whatever the symptom. Maybe they're new to the game. Or maybe they have a radically different philosophy on how to play the game, where to go, when to push, when NOT to push, etc. It doesn't mean they don't know what they're doing. It means they have no faith in whatever it is that YOU are doing. And there is no way for the matchmaker to know these things about players. Hence solo-queue squads of players who are completely disconnected from each other and who consequently give the impression of not understanding the game. Often times they understand it all too well - they're just not playing the same game. That's how much latitude there is in your approach to Battle Royale.
Don't know if any of these perspectives make any sense, but I agree with 100% that all of this is worthy of discussion.