MIPS hadn't been providing much competition to ARM[1] in the decade or so leading up the 2016 bust up between Apple and Imagination, so why would it suddenly st

MIPS hadn't been providing much competition to ARM[1] in the decade or so leading up the 2016 bust up between Apple and Imagination, so why would it suddenly start doing so after? [1] In general terms, I know it has (had?) a few niches like routers (IIRC).