Not that easy.
Tim could investigate all he wants but without any concrete proof his efforts would amount to speculation and a whole lot of negative attention from contra-conspiracy freaks.
Hes whining about YT bullying him non stop, he wouldnt want more of that.
And getting concrete proof of this would be pretty much impossible for him imo.
If it was as easy as spending a few hours on the computer after work someone else would have done it already, its not like every single journalist is on board with fraud.
Basically don't think hes some sort of a superhacker detective just because he told you he is.
Well that's why you investigate so you can find evidence to prove one way or the other. Which you should be doing if you are a journalist. Which Tim Pool claims to be. If he finds concrete proof, that is huge. If he doesn't, the fact there is none is also huge.
Other people are already looking through all the oddities.
I don't think Tim is some sort of super journalist because he told me. I'm saying that Tim skill set that got him massive success a decade ago as reported by news outlets would be very useful now.