Many players routinely add 20-30 lbs in the 3-4 years post draft.
Why would Catton not be capable of 180-185 lbs with a 5'11 frame?
Keller, who's a pretty common comparable, was 5'10 163 at the combine and is now 179.
Point was 5’9.75 160 and is now 183.
Kucherov's 5'11 183 now, can't find the combine data for 2011 but different scouting reports had him in the 163-171 range.
Because not all humans have the same ability to gain weight given their skeleton type.
Catton is a small built. You can't just name names and compare them given their height, doesn't work.
Keller is pretty tick naturally in the lower part of his body, same with Point.
Kucherov had big bones for his size, Russians can nearly all add 20-30 pounds.
Catton is a small bones, Leblanc style.
Plus something to know here:
Combine weight tends to be playing weight, or a bit more.
When you say Keller is 179, that's his training camp weight (or summer weight), he's probably 172-174 at this point in the season (in March). Catton will show 15-20 pounds from summer weight as well. I think he'll gain 10 lbs of playing weight in the next 5-7 years. He might ultimately add a few more.