I'm not really that familiar with LTT. I did subscribe to his channel, mainly because I was bemused by him borking his PC by rushing an install of Pop_OS and Steam. ("yes, do as I say", if you recall). Reading the PC Gamer article, it appears he did the same, "just drive on without thinking it through" approach to this prototype cooler. I haven't watched a lot of his videos and anyone can make a mistake but, there is an expectation that a "tech expert" show a bit of diligence. Plus, if he's showcasing a vendor, he should make sure they have every chance to shine.
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.....this guy is starting to look like a poser now....