All I get out of OP is that he is QQing.. like seriously.. I am sorry but why should we be limited to what we can do?? because you're to lazy to level another job that will increase your teams overall effectiveness..
I love being able to swap jobs, allows me to shine at 2 roles instead of one.. and there will always be the best setup for every content.. so people will still stack jobs cause thats a community driven aspect.. If you do not wish to do this, then by all means form a static that consists of 8 ppl who only have 1 job and good luck..
Don't try and limit the rest of us, cause you can't handle it nor find time to level another job.. Ive been working fulltime for years.. and I have all 50's so thats not an excuse.. it takes hours a day to get 50.. hell a weekend of leveling..