That's just depressing, the logical conclusion of your argument is to roll a Samurai in 4.0 and forget everything else.
Joking aside... the game I played before FFXIV had tanks, healers and DPS with a skill system that allowed players to create hybrid builds and no trinity focus or restriction built into the combat system. However even there I felt a bit more like a tank or healer depending on my skill build, than I often do in FFXIV. Given the stricter definition of the jobs and trinity of roles in FFXIV, I cannot for a moment believe that it's impossible for SE's team to balance the game in a way that values all 3 roles distinctly.
