Yes, it's a problem if your kid plays 3 full 90 minute ECNL games in three days, but it's the parents fault because they let it happen, just as they're a shitty parent to let their kid play full HS games plus OT. Speaking generally, however, a kid is much more likely to have a shitty HS coach who doesn't understand or care about how to mitigate injury risks than an ECNL coach. But, again, that is not always the case and depends on your situation. Deza for sure will not ride your kid too hard physically.
Whether HS is the best decision always depends on the situation, and anyone who claims they know what is best for everyone is just an idiot. My kid played HS soccer and loved it. Many of her teammates didn't, and are glad. Mine was lucky because her HS coach was a good guy who understood health was more important than winning, we were on the same page and it all worked out. If he had tried to ride her hard to win games, however, it would have been different. She also essentially committed as a HS freshman, so she didn't have to worry about missing recruiting opportunities playing HS, getting booted from her club team, or getting hurt badly and not being able to leverage her soccer ability into college opportunity. She had all the power, and we used it to flip US Soccer the bird with its GDA HS ban. But with today's NCAA recruiting rules prohibiting contact and visits until much later, there is more pressure on kids to skip HS, which gives clubs more leverage and parents less. If my kid had been a marginal D1 prospect instead of an elite one under today's recruiting rules, missing out on high level training and ECNL showcases in front of college scouts would have been a bigger deal and she probably would have skipped HS just to be safe. As an aside, it's funny seeing idiots like crush proclaim their love for the NCAA rule change not realizing that it only took power out of his hands and gave it to the club coaches and DOCs he hates so much.
It is also important to understand that, when Deza discourages HS, he's only trying to help your child, although the idiotic parents here fail to comprehend this. Maybe it isn't what is best for one's kid in the end, but he isn't trying to be malicious or a "control freak", it's not a "power grab" or "money grab", and he isn't "threatening" you. He is trying to get your kid and all of her teammates the most and best exposure to colleges and the best training which, in turn, provides these kids with the best possible college opportunities. Those who are upset at clubs for discouraging HS will never admit it to even themselves, but they're really just upset their daughter's teammates are going to get recruited while they're gone and they don't want it to happen without them. If their kid isn't going to take advantage of getting recruited for three months, they don't want anyone else to be able to do so either even if they want to. It's a pretty fucked up to not want what is best for your kid's teammates and the parents you sit next to 9 months a year, but that's what is really going on. But the truth is colleges are going to continue recruiting even while their kid plays HS, ECNL is going to continue holding showcases to facilitate recruiting, and a lot of kids and clubs like Surf are going to take advantage of it, as they should. If you don't want that golden recruiting opportunity, ok, but that's the price you pay. Just accept reality and wish your kid's teammates the best, even if it means they get that final offer from Stanford or USC while your kid was away.