It's not happening to them, so it can't be a problem, can it?
I was recently attacked by a related piece of crapware pushed through a malformed banner ad. My PC was well protected, but closing the browser was the only safe way to get rid of the incessant demand that I install the crap.
I informed the host site concerned (for which I pay a subscription), explaining what was happening and that they should have words with their banner ad supplier.
Their response (overnight) was very dismissive, claiming that their site was entirely virus free. I emailed back explaining again EXACTLY what was happening. I named their banner ad agent and told them to shout in that direction.
Again a dismissive reply. At least they mentioned removal tools this time. I knew I was not infected, so did not need them.
Half an hour later, another malformed banner. Different "product" name, same scam.
Another email to the host, explaining that although I knew that their site did not actually push this crap directly, other subscribers would not be as savvy, and that they would lose trust, and serious money. The site, and the related ones which almost certainly share the same banner ads, have hundreds of thousands of subscribers. They ought to have serious words with their banner ad provider.
The next day an apologetic email arrived. They had eventually spoken to their supplier.