Why do manufacturers of physiological sensors (heart rate sensors, EEG sensors, etc.) not offer an MQTT interface and an InfluxDB example to their sensors by default?

Why have physiologists have to invest so much time in connecting OpenBCI Cyton boards over LabStreamingLayer to Python LabStreamingLayer (pylsl) and from there to InfluxDB? Why do manufacturers not offer this option by themselves? They can do this much better. And why do physiologist have to wait so long for an issue-free OpenBCI WIFI shield …