Seems the classic legacy overengineered thing that costs 100x production costs because it's a niche system, is 10x more complex than needed for to unnecessary perfectionism and uses 10-100x more people than needed due to employment inerta.
A more reasonable thing is to just use high quality cameras, connect to the venue fiber Internet connection, use normal networked transport like H.265 with MPEG-TS over RTP (sports fans certainly don't care about recompression quality loss...), do time sync by having A/V sync and good clocks on each device and aligning based on audio loud enough to be recorded by all devices, then mix, reencode and distribute on normal GPU-equipped datacenter servers using GPU acceleration
A more reasonable thing is to just use high quality cameras, connect to the venue fiber Internet connection, use normal networked transport like H.265 with MPEG-TS over RTP (sports fans certainly don't care about recompression quality loss...), do time sync by having A/V sync and good clocks on each device and aligning based on audio loud enough to be recorded by all devices, then mix, reencode and distribute on normal GPU-equipped datacenter servers using GPU acceleration