This exact situation occurred to me in a college tournament in December.🙁
I was the L (table side), 3 pt shot came from C area and the ball barely passed over on the way down when the defender grabbed the ball even with the rim. The C & I knew the ball did not have a chance to go in but the T called goaltending 😮 because (according to him) his angle justified his call at the time. 🙄
I gathered the crew after the whistle and asked them what they saw. We explained to the T what we saw and he knew he made a mistake.
We rectified the call by ruling "inadvertent whistle" and resumed play at the POI when the defender had the ball to keep possession.😉
Our conference commissioner and supervisor were in the stands and supported our ruling. 🙂
The entire crew ended up working the conference tournament a few weeks ago.😃