I self-host a few servers and have not seen significant traffic increases from crawlers, so I can't agree with that without seeing some evidence of this issue's scale and scope. As far as I know it mostly affects commercial content aggregators.
First from known networks, then from residential IPs. First with dumb http clients, now with full blown headless chrome browsers.
I've worked with a company that has had to invest in scraper traffic mitigation, so I'm not disputing that it happens in high enough volume to be problematic for content aggregators, but as for small independent non-commercial websites I'll stick with my original hypothesis unless I come across contradictory evidence.