i am suggesting that it IS adequate
since shift, ctrl do not count toward the 2 key minimum. if they did, yeah, it would be a huge problem. EDIT - WRONGO - read below
only certain cases make the non-NKRO boards unsuitable. everyone keeps chanting the diagonal movement + talk or something, but i map as many buttons to my mouse as i can anyway, including talk. it is more of a peace of mind thing, knowing that my fingers will limit my in-game movement, not my keyboard.