1. so long as this adjustment is small - a tweak around the edges - then I think it likely will be fine - and we likely never would have noticed it
2. if it is large, then a major departure from having each event, possession action independent seems bad
3. I can rationalize that this is something like an adjustment to reflect what would happen during a game - good FT shooter is missing too many, coach calls him aside, tells him "kid it is just you and the net, no one else is here, dont look at your girlfriend, dont hear the crowd, just you and your net outside your garage back home....:" or whatever
4. better be small - just enuf to reduce the odds of extremes and NOT enough to make most, many, all performances standardized