Wifi is fast but the latency is terrible and the reliability is even worse. It can go up and down like a yo-yo. USB is far more predictable even if it is a bit slower.
I have a cluster of 4 RPi Zero Ws and network reliability is not great. Since it is for the chaos, it’s fine, but it’s very common to have a node be offline at any given time.
Even worse, the control plane is exposed, but for something that runs 3 Hercules mainframe emulation and two Altairs with MP/M, it’s fine.
Not sure why this happens to you. I have HA with several dozens WiFi devices and I have only 2 devices (one relay, one sensor) that disconnect regularly, they have both poor WiFi signal, one in a basement and one far from the AP. Almost all are on 2.4 GHz, not by choice, but they work well.
Even worse, the control plane is exposed, but for something that runs 3 Hercules mainframe emulation and two Altairs with MP/M, it’s fine.