So with Folou I firmly believe this is attention grabbing rather than any deep seated belief against kneeling. Mainly because I don't think I've heard any evangelical posit that point ever in opposition. The closest was Raab when he made his stupid GoT statement.
That's him general whilst I agree with the broad question we shouldn't force people to take a knee (and it is becoming a performative piece rather than an actual protest or statement without actions) we should absolutely question why they don't. If they can state grounded reasons with actual logic then it's fine otherwise we certainly should question if they are using any excuse.
For example if Falou's statement about it being tied to his religious beliefs in the actual act kneeling it would a sound reason. Similarly the aforementioned John Snow does actually buy a poppy every year he just refuses to wear one reading the news as he believe as a broadcaster he should not be giving an opinion on what he reporting. In a similar vein I would not expect Snow to wear a BLM pin or take a knee whilst reporting the news.
However if say Snow was to wear other charities pins whilst wearing the news. Or Falou's cited religious beliefs turns out to not be practiced then we can absolutely question why they have chosen this hill to die on.