easy reqs? no way. 1v1 reqs are almost impossible period, bh reqs are something i struggled with while i was using decent but not spectacular teams (and there's been talk of raising them), and the other suspect ladders seem to be much the same. you need to be good if you want to vote.
less relevant contributions? idk but it's still the same amount of work so i think it should merit the same reward. the 1/2 vote can work too i think as a compromise, because if you contribute in 2 suspects for say mnm then i'd say that's at least equal to one for ru in terms of how valuable it is.
The best we can do is making an effort to follow the way standard tiers conduct themselves (including tiering policies!), and the new suspect ladders is certainly a step in that direction. We just have to hope that Smogon senior staff take notice and maybe one day OMs can count as even half a vote.