the pressure Ryanair (and presumably the other no-frills brigade)
Please don't lump all LoCos in the same basket.
You need to differentiate between each individual airline and their own safety cultures. You also need to appreciate that they have different controlling authorities, Ryanair, Irish Aviation Authority, easyJet, BIMI baby etc on the British CAA.
I will happily fly on any airline that has an AOC from the UK CAA.