Them being able to offer this service, and them proxying 30% of the internet are completely unrelated. Any other company could offer this scrape protection if they wanted, with roughly the same cost of entry.
You can hate cloudflare all you like, but only a certified dumbass would try to pretend this feature is somehow enabled by their market dominance...
And then, in the caption:
Some mild irony there
But in seriousness, really good to see this quantified, but sadly not a huge surprise