Wikipedia is very user-driven in how they moderate. As a result their policies are intentionally broad. The fact that those policies are selectively being used in this particular event (and not in others) is deserving of criticism.
except, the policy isn’t being applied selectively? The page was kept. Do you think that every Wikipedia editor agrees with you on the notability of Yaroslav Hunka? Because it only takes one for there to be a discussion and a couple idiots to provide fuel for the rage-bait. But it takes an overwhelmingly large number of Wikipedia editors to disagree with you, specifically, for this to be a Wikipedia problem
Complaints on Wikipedia are raised selectively: the policy isn’t uniformly enforced and many people notable for only one thing have their pages kept up without dispute. The fact that an issue was raised for this page in particular (and not the many others that feature people notable for only one event) is the point of contention.
Then unless there is there is some technically complex process by which Wikipedia articles are put up for review that I don’t know about it, your contention is with a single user. That individual is not reviewing every single new person article created and applying their fully discrete interpretation of Wikipedia’s policy universally. And shame on them.
Be serious, any human language law/policy/rule managed with human interpretation cannot be applied without an element of bias. Assuming an adequate judicial process, the worst consequence of a flag->review is an issue not being flagged. If we’re talking about meat-space laws for humans, then yeah you have to be more careful with false flags (arrests) because there are consequences to a human for that action. But if someone inappropriately flags a Wikipedia page for Review what are you going to do? Hurt its feelings?