This is the real source of the problem - unless and until the rule is changed appropriately there will be confusion and more of it each year.

Scrappy got it right above. It's totally amateur hour.

And it's an easy fix.

Subsequent a throw-in, a backcourt violation cannot occur and a 10-second backcourt count cannot begin until or unless player control has been established.

And that's the worst part of this: not only is your solution an example of a simple fix, but there were multiple other avenues to get the end result they desired without creating such a ridiculous ongoing issue.