While the author is presenting a kind of clinically neutral tone, the number of times they mention that it's "addictive" is the point they're making, wittingly or not. One could almost expect nervous laughter from the author.
TikTok shaped the internet, alright, but not for the better. The short-burst video format is engaging, but it allows no room for nuance, no room for fact checking or deeper breakdowns. We can see the effects in the rise of anti-intellectual, anti-science, and reactionary rhetoric. FFS, the "person nods and points at reposted video" while silently adding nothing is now a meme, because TikTok "creators" still do (did) it unironically, and people still (used to) eat it up.
If anything, TikTok has abused human psychology and left society the worse for it. I hope Trump fails to prevent the ban, because if not, expect the firehose of disinformation to only grow and attention spans to shrink—a deadly combination.