They definitely aren't striking prodigies, but ultimately they don't really need to have JDS level striking to be champions at HW. If they build up enough of a defensive striking game, they can avoid guys like Ngannou KO'ing them. Blaydes hasn't evolved to that point yet, but he's still super young for HW. Juan Adams striking is going to increase massively as time goes on since he's insanely raw. Most of it is just the amount of experience. Blaydes has 7 years experience as a fighter, and he's top 5 and still improving. Juan has 2.5 years experience. Juan is much more raw at only 2.5 years as an MMA fighter. To be in the UFC with that little experience is crazy, and he probably won't peak as a fighter for another 5 years. Blaydes will probably reach a point in a couple years where we can safely say he's reached a level where massive improvements won't happen anymore, but he's not there yet. Overall, let's revisit this in a couple years, if they haven't improved much, then maybe we can make some assumptions. Right now, especially for someone like Juan, it's way too early to write off major striking improvements.