Agreed you cannot roll need on another classes gear. Its MO group etiquette. Its called Ninjaing. Ninjas should be shunned and not grouped with. Kicked out of guilds and ostracized. We have to police this game ourselves and refuse to play with those that break the social norms. I propose economice sanctions!!
There are just as many 50s on my team as the opposing team so it really doesnt bother me. I win some I lose some. I get stomped by 50s on the opposing team, the 50s on my team stomp the lowbies on the opposing team.
And games just arent developed that way. Perhaps the new flashpoint was ready to be released and the new warzone is still a work in progress. You have to have patience games take time to be developed. The developers are well aware of the issues in the game it just takes time to fix them.
Lag is really annoying but it gets better, just takes time. All MMOs have the same issues at launch. Just gotta be patient or try the game in a few months, this wont be an issue.