When did video games get so serious that we need to do these things? Ridiculous.
For example, a soccer Sunday league might not be that serious, but you still wouldn't want someone frequently running on the pitch with a golf club and whacking the ball into your goal with no consequences.
If on the other hand you're trying to imply that cheating in popular PVP games can be prevented without measures this extreme, as far as I know that's just wrong. It's an arms race and we've been at it long enough that we're at the hardware level now.
Riot Games was also the one that introduced the nanny policing of "if you deviate from the squeaky clean advertiser-friendly image we stipulate, we'll make sure you have no future in the pro scene ever again" tribunal, presenting themselves as the bastion of "pre-eliminating all toxicity from online gaming", which is ironically hypocritical considering their scandals after scandals of toxic workplace culture.
Artificially propped-up unsustainable "professionalization" whose eventual conclusion is to enforce spyware on casual participants? That's Riot's gift to the world.
LoL (Riot's first big "esport" game) didn't really start having large tournaments until 2011. LoL didn't even come out until a few years after ESL started hosting regular professionalized Counter Strike tournaments.
This is more necessary with the rise of freemium games where the base account is trivially replaced and so banning people's accounts does nothing.
Not that paid games don't have cheating issues, but there's a limit on how much people are willing to spend getting rebanned regularly.
The only point to these systems is companies wanting a total stranglehold on any way to play the game so that you cannot bypass their skin market.
Otherwise, they wouldn't be doing any of this, because it costs more to develop a root kit than it costs to just hand out a shitty server exe and let the community figure it out like was common in the past.