player control or not

[AKOFL]

Red team takes a three point attempt, ball rebounds and heads oob twords the end line. Red player runs and jumps to save it and throws it way back tword some of his players at the division line. The ball didn't go directly to one of them so they had to chase it into the BC. white coach wants a bc violation. I'm sure it is a HTBT but what kind of action do you need to see to consider that save attempt player control and thus a BC violation? hope that makes sense.