Timing a release is NOT a skill. Muscle memory on a button duration is NOT a skill.
Using tactics to get a clean open look IS a skill.
This is the broken logic that gets us 13 patch life cycles. There's a lot of stuff related to shooting that is "Stick Skills", such as creating your own space, using offball cuts, and good basketball to generate open looks.
To put it in different terms. I've played guitar for 15 years. A lot of kids start learning and want to shred. The result is you get a lot of kids that can play one scale pattern in 32nd notes at 190 beats a minute (Read: really FN Fast). That's timing though. With enough practice your grandfather could do that.
The true skill comes in being able to play that fast, and break out of your pattern, or completely improvise in the scale your using. The skill comes from the ability to use that timing in various ways (as well as knowing when to slow down).