Game Video is certainly part of the equation, if they ask for game video AFTER you send highlights. Coaches want context but only after they are somewhat interested.
I'm sure many have different experiences with college coaches and their recruiting style. The ones I know will not watch game video unless they've requested it. ECNL did a decent job in NOV with their showcase, at least logistically, with their streaming. The small sample size of coaches I know who viewed the live stream said it was difficult to watch and didn't provide value in identifying new talent. The opposite may have been true for some you know.
Unfortunately, and to no fault of their own, the 21s and 22s that haven't signed or are still looking are having a tough time. Much harder for the 21s, the 22s have some time to work the edges and get noticed.
It sucks, big time - an emotional roller coaster for your player. I just went through it with my oldest. He was fortunate in the end but learned some life lessons along the way. Also realized, on his own, that NOT playing wouldn't have been the end of the world and to prioritize academics. He had to come to that conclusion on his own.