this isn't exactly a popular stance but i remember reading once about how as long as they are throwing "smartly", having more INTs is like a better indicator of young QBs potential. because if they are still making smart throws then those INTs are going to be things they get used to fixing (like fitting the pass into a tiny gap more accurately)
which isnt to say wilson will turn out poor just because he hasnt thrown many, (and i havent watched a ton of Luck) but i'm going to assume Luck is generally making "smart" choices with his throws. and if i had to pick one of them to be the next brees/manning/brady it's like 80% Luck 20% Wilson. like, Indy is conditioning him to be great, whereas carroll is conditioning Wilson the same way harbaugh did with smith earlier this year.
ETA: 1st year TD/ints -
Brady - 18/12
Manning - 26/28
Brees - 17/16