High quality streamers cashe and isolate, making up for deficiencies in bandwidth, latency and such. While admittedly I have been in IT most of my life, this comes from observation of my own streamers producing simply stunning, uninterrupted sound quality from cheap repeaters. Observation to me trumps theory. I recently took a EtherRegen out of my system that performed no useful function and with two high end Ethernet cables on it degraded the sound.
With very inexpensive streamers I believe the network reliability is important. But with contemporary high quality streamers, typically it is not that important.