So you're saying the only reason you do SM stuff is because you get a reward from it? Interesting.
RNG by its very definition involves no skill at all, nor any input on the part of the player. It happens by itself, at random. Again, no input whatsoever. Purely luck-based. No input. Player doesn't need to do anything and cannot do anything to affect the chance of the proc. No input. Nothing. The player could go AFK and the relics would still proc. NO INPUT AT ALL.
Have I made that clear? No skill. None at all.
False. By not doing anything, the relic will not proc.
It requires actions from the players doing something for the relics to proc. Therefor requiring input, therefor requiring Skill.