Well Remans are pretty strong but so are Romulans with their racial trait so it works out ok.
One thing I would like to see is like the OP says a more balanced racial trait system. Right now there's some races that are clearly the choice for those wanting to do damage, tank or heal. Others you look at and think, yeah it's nice but X,Y,Z are all better in that area. I mentioned in the trait revamp thread that liberated borg is definitely a bad one to choose atm as Bajorans get better regen and buffs in general and the unique hold they get is inferior (though longer range) to that of everyone elses.
Joined trill is another good example, +3 and +6 to a wide range of skills? It's not noticeable and the +6 ones tend to be to engineering skills, and even with the regen is second to the bajorans which get other more noticable and meaningful buffs ontop. Make it +10 to SubD, Weapons training and EPS and then it will be a good average race and help give something you can't get somewhere else.
By the way I haven't had chance to run around on tribble making characters left, right and center for feds but are they still doing this stuff with certain traits being locked out of certain races?