I'm not thrilled when GM approval amounts to "uh, sure add 5 points as long as they're a gimpy 5 points" over and over every time the player gets a feat

.
5th is of course the absolute worst moment in their performance curve - still stuck at 1st level, foes 4 levels above them for the first time. It'll pick back up as you keep leveling

. Back in the previous incarnation of the game (spycraft) it was a feat with a minumum level requirementof 6 to specifically avoid the 'anti-sweet-spot' you're in just now.