Is it still a thing to have some rigs and farms regardless of main strat to reduce your earthquakes?

It used to be (or at least was theorized? It's been a while) that having farms and rigs gave you extra negative events in the hopper, so when RNG screwed you there were 2 non-damaging options.

No

Consider this a petition to remove earthquakes :P

No. They are my pleasure to incite them on you all