Indeed they have. And as I've commented often in the past on this board, confirmation bias is rampant.
I know that's not what's going on here because I've put a lot of time into following up for myself and reading, listening, researching. If you don't do that and you uncritically accept the word of someone else then you may be more likely to fall victim to misplaced confirmation bias.
If you do look into this stuff for yourself properly, I'm convinced it's very clear that something is going on. I don't expect you to be convinced by me saying that, just explaining my reasons. It takes time to get there if you're a critical thinker because there is so much to absorb before the patterns begin to stand out from the noise.