There's a really great opportunity to create monumental goodwill here at negligible financial cost. If 30% of gross traffic is crawlers, and half that is wasted, then that's a cornucopia.
Slice off a few percent of the savings to make the crawled/pushed/IdenxedNow pile free for the public to supplement other archival efforts, train ML models on, use for small-change operator recovery, seed torrents of public-domain content, etc. and I'll call it fair. All the (relevant) actors involved are so heavily peered that they could store it on 8TB M2 sticks and it would vanish into the noise of 1/6th of gross Internet throughput.
My initial instinct was to be all cynical like "great, a new model for SEO competitiveness that locks the heavy-hung dark fiber incumbents deeper into the fabric".
But I'm trying hard to be more positive and there is a really positive outcome here.