I think the implication is that 90% of the unsolicited requests are obviously garbage and are immediately ignored. The remaining 10% may still be mostly worthless, but it at least takes some investigation to identify them as such.

The fact that they look at more than 0% virtually guarantees the flood of requests will continue.

If they really didnt want to be inundated with these requests, they only need to cease acting on all of them until the message gets out.

The stats cited in the article fell short of my definition inundation.

I'm guessing most people realize it's ridiculous to even send such requests when they have 2k followers.