I don't think that's a fair characterization at all.
Fangraphs on Parker:
Explosive lefty power bat with a (somewhat small sample) contact performance that reinforces confidence in Parker's ability to access his power. Sweeping bat path similar to Walker Jenkins and Brady Ebel with dangerous low ball uppercut. Has shown some ability to flatten his swing to cover the top of the zone, with some oppo-poked contact of this style... Has a little less bat-to-ball track record as the other elite prospects, but has the contact/power combo to be an everyday player... Since last year’s PG National, Parker has really gone wire-to-wire as the most even-keeled, well-rounded high school prospect.
Fangraphs on Cook:
Likely low-impact offensive player barring total overhaul in approach and swing. Of all the athletes who might be able to do something like that, the recently converted guy is as likely as anyone... His offense (currently a slash-and-dash type) might evolve as he accrues experience.
Most highly drafted high school SS prospects sound like JoJo Parker on scouting reports. Jackson Merrill, Kevin McGonigle, all sounded like that. MLB says 60 hit 55 power for Parker.
Cook, look up some video on him. He does have a goofy stance and swing and he has styled his game as a slash and dash burner. But he is not a thin little speedster, he's like 6'3" with some muscle on there. His first HR this year was an oppo shot. That Jays only draft him at 81 if they think they can coach power out of him. I bet his swing will look completely different in pro ball, or maybe in 2026.