… it's not as simple as pushing a button, amongst the recordings they need to find one camera at a certain timeframe, queue it up for the TMO, then send it to his monitor.
But maybe it could be? There are enough sports that could invest into a system where all 30 or more feeds are synced up. Each feed has its own channel.
Thinking about some of the video editing panels I’ve seen, something similar could be used - essentially mimicking what the broadcaster currently does as they select which angle to broadcast.
Build it from the ground up to just enable the rapid review and selection of synchronized feeds, with each camera piped in on its own dedicated feed all stored on a large drive that can keep (ideally the full match) but at least several minutes. Could also be useful to keep all those angles for disciplinary proceedings later.
All the broadcaster does then is stream all the live feeds in, leaving the TMO and team to choose for themselves. Given the
filthy lucre sloshing around the trough of some professional sports financial incentives for fast and accurate decisions, there should be both a way and the appetite to do this.