Agree 100%, client side anti cheat was never going to work.
It has been (and continues to be) an enormous amount of effort, and some cheaters are absolutely going to get through anyway.
If they actually cared about stopping cheaters (rather than pouring tons of investor money into the appearance of anti-cheat), then yes, the future must be that.
But. I'm a USian and I notice that the TSA is still strip-searching people at airports and -worse- wasting assloads of everyone's time, effort, and tax money. I have zero faith that a sudden attack of common sense will redirect efforts (whether they be in the arena of airport security or eviction of match-damaging video game cheaters) in a more sensible direction within what's left of my lifetime.