The seat debate comes up incessantly for a reason, the vast majority of new railway seats in the UK are dreadful. Even the 'better' options are, I'd say in the opinions of the vast majority, inferior to what came a decade before. Everybody just wants 'the least bad', so discussions about seating with new stock are unfortunately inevitable. The 222 is one of the last examples of 'when train seats were good', before presumably safety & fire resistance regulations outlawed anything that's remotely comfortable!
Perhaps it's because I wasn't in enthusiast circles back then, but I don't remember seat comfort even really coming up in the old days, before the advent of, for example, Fainsa seating in the UK. There was no need to discuss it much because it wasn't really a problem.