I would grant the "30 second....not 20 second time out and let Team A have the ball out of bounds.
I am going to go out on a limb and guess that the point of the play was that the ball is still in Team A's backcourt and 10 seconds have elapsed off of the shot clock.
Many collegiate officials use the shot clock as the indicator of when the 10 second violation occurs, going so far as to tell the shot clock operator in pre game to be slow to start and reset since they (the officials) will not be doing an actual count, but looking at the shot clock for the violation indicator. However, by any case book play, the shot clock is not the official indicator as to whether or not a violation has occurred.
Any official who deals with shot clocks will have to admit that way too often the shot clock is not run properly (i.e. by the time the ball is inbounded there are only 33 since it was reset on the make, etc.)
I go by the count that I have.
Crew....this may not be the answer you are looking for, and I do understand your logic...I just don't agree with it. Plus, since I work women's college, we don't care how long they stay in the back court