Hey, gotta prioritize. Those slushie machines are expensive.
The attachment point appears to be for a Lok style belt clip and I’d guess the holster itself is made of Kydex or something similar. Once you have the mold, Kydex is relatively cheap to manufacture and it’s a reasonably flexible but resilient and durable plastic that lends itself well to holsters. My guess is that the sensor mechanism needs that somewhat rigid support against the gun inside the holster to work reliably. A leather or nylon holster would likely be too soft or become too soft over time. Also, a lot of people prefer Kydex because it can be quicker to draw from but still holds weapon quite securely. The downside is that it doesn’t conceal well, but that’s not really a problem for uniformed law enforcement.
