I think we agree more than disagree. I personally think isolated technique training is appropriate when the team is still small and the kids are young but should disappear gradually as the kids get up in ranks and high school ages. The thing that irritates me is that US Soccer does tend to agree with you that this should be "mostly through individual work though" but won't come out and say it. I'll repeat it again what I've posted before: I was reprimanded by my instructor during my elicense for putting together a level 2 exercise on crossing using just 1 attacker, 1 receiver and 1 goalkeeper (no pressure, with pressure added with 2 defenders on the level 3) in an exercise geared for 8-9 year old bronze levels. They felt it wasn't game like and even the youngest players need to learn to cross under pressure. I asked "well, where do they learn their technique...you know how to actually physically cross the ball and with accuracy?". They answered "that's what trainers are for". But that's not what most club parents out there think....they think the kid is on their team and that's pretty much all I need because it's the coach's job to teach them. If that's really the philosophy that US Soccer is going for, then they should just come out and say every kid [at least on the younger end] should have a private trainer, parent who knows how to teach, or academy to work on their individual skills (but they can't because they are already under fire for accessibility and rising costs).
As for juggling, every team except the current one my son is on in their try outs [both this year and last] that he attended had a juggling session. And, per the advice of this board, he didn't go to any of the cattle call try outs. It's an easy way for the coaches at the younger levels to weed out those who have ball control v those that don't.