Whether it's malicious or not, Google created this ecosystem where you need to process and serve a bazillion ads to compete with them, if they're unable to properly vet those ads it's on them to scale back to a size where they can properly vet them.
If this was a one-off issue then sure - but Google runs a lot of really slimy advertisements.
It's pretty telling that even small-ish video producers are willing to vet their advertising partners more thoroughly.
Hate to break it to you, but that is how most evil in the world works-- through callous indifference and incompetence, not through some cartoon villain.
That's always been the case and it still doesn't matter. It would matter if this was an isolated thing that happened every once in a while, but the outcome has been the same, which makes it not matter when it's been going on for so long.