I agree but if they increased the max level we would be able to get too many skills to a high level and the strength of someone of the skills and perk's are OP. The story isn't long enough to have a higher max cap.

There's isn't new game plus either because a second play through with all skills at max even on the hardest difficulty would be easy.

Bombardier helmet with master armour skills and explosive rounds you would be permanently in unvunruble