My thoughts as well. Other components I can justify buying a fancy version of if they are aesthetically pleasing, even if they don't serve a functional purpose like accuracy or reliability. But a bolt is largely internal and doesn't factor much into the looks of a gun.
If you replace the trigger and barrel, only the bolt is left. Most will change out the extractor... factory firing pin works until you wear it out.
As long as the factory bolt moves back and forth smoothly, gun goes bang and an empty flies out, what more can a bolt do? And if all this happens, then the receiver is doing all that it is designed to do. Exterior appearance doesn't confirm internal function.
If the goal is to improve the accuracy of a 10/22 as much as possible, there are definitely areas to spend your money on
Jerry