Which is more likely:
A: He was going to become the greatest shooter in NBA history before that minor injury derailed him
B: He was extremely lucky in the first part of the year and then regressed to the mean like every other player ever.
Yes, it's a clear cut either or.
It's not like he's still averaging over .400 for the year and over .380 for his career. It's unpossible for a guy like that to shoot .450 from 3.
I'm not saying he was going to keep hitting over .500. That would be other worldly. But even with an injury to his shooting arm the guy is putting up better than league average numbers.
And it's a smaller sample size, but his FT% has also gotten worse, for a guy who averages over .800 for his career from the FT line, back to back months of .765 and .682 would indicate something is up.
I think to just dismiss it as him "regressing" is blind dedication to numbers. Guy is an above average shooter, who looked like he had progressed and finally found an offense that worked for him and he had the minutes. Then got injured.
I'm not saying pay the guy the max, that would be idiocy.