I am probably going to recieve criticism for this post, but seeing some Slovak fans on this forum or on Twitter dissapointed with the draft (again) I think it needs to be said.
NHL scouts aren't idiots, they are picking on Slovak players and taking them lower than they should be. You can make an argument teams prefer Canadians or Swedes in the late rounds, thus omitting a guy like Stacha maybe, but in the top rounds it's 100% about quality, not nationality. And honestly, even if Stacha or Hlavaj got picked in the 7th round, what difference would that make? It doesn't magically make them better players, neither worse for that matter. They remain longshots to make the NHL, just like the guys taken in the 6th and 7th rounds. If you are good enough, you will draw attention one way or another, eventually.
I also read the opinion that Stacha getting drafted would have been big for the Slovak league, with which I personally disagree. One 7th round talent doesn't make the league any more interesting. Alexander Texier got drafted in the 2nd round in 2017, out of the French league. I doubt any NHL scouts have been there since then, as there was nobody to watch. If you dumped Lafreniere in the Slovak league I can assure you the stands would be full of NHL staff. If you are good enough, scouts will find you no matter the league you play in.
Finally, I think Slovak fans have just unreasonable expecations of the players. I remember when Cajkovic was supposed to be a top pick, this year Chromiak was entering the season as a 1st round candidate, and for next year I have already seen some suggesting Myklukha could be a 2nd rounder, with which I respectfully disagree. Slafkovsky and Nemec (and the whole Slovak 2022 class for that matter) look promising two years away from the draft, but again, I have read the opinion of them both being likely top 10 picks, which is just laughable at this point.
tl;dr, draft isn't everything and keeping your expectaions reasonable makes it more enjoyable, especially when a truly strong class appears.