Lee Sin underpowered?

After the 4.14 path Lee Sin has been in my honest opinion fairly bad. Stacked up against other early agro junglers (Vi, J4, RekSai) he lacks utility, scaling, and base defensive stats. What he gets in return is a slightly stronger level 3 (barely). I think riot should look into some small buffs along the lines of Tempest/Cripple base damage or returning the attack speed slow.