Junkrat pickers, please don't take this seriously. I believe all classes in Overwatch require some skill to be played at the highest level. Well, except Symmetra... I mean, auto-lock gun with automated sentries? I'm surprised the hero don't move by itself at this point.
But back to our peg-legged terrorist... Overwatch right now really favors DPS who can take out healers. You need either mobility or long range and Junk lacks both, a problem he shares with Reaper by the way.
This said, I feel the last part of Route 66 is perfect for Junkrat players, and the low ceiling means Pharahs there are more rare so there is that.
Personally, I wish he could lay more than one trap. This at least could give him some extra utility.