"Problems of a Paladin: I became the strongest hero and broke the villainess heart for the 7th time with a cheat code to chill out and be the best protector in another world! Why am I a loser in this time loop????"
IIRC, the reason titles are like that now, is that japanese people stopped reading light novel descriptions, so this is how the publishers made up for it.
legality was never a thing nintendo considered