The Google search result issue came to a head because of the reddit debacle. With the protest sending so many core subs private it immediately killed any seo those subs had on google search. Even Google made the announcement acknowledging that the reddit protest had ruined search results with most of one of the largest and most visited websites suddenly not being searchable.

If I had to hazard a guess I'd say the trouble at reddit is the first thing to put fire under Googles feet in a long time and now the tech giant's eye is focused back on their main product for generating ad revenue.

So with Elon putting limits on accessibility for his site there is zero chance of Google being able to properly index and cache twitter content, I'd even bet most of the moderation was done by automated indexing systems that could no longer access content.