Passat Longlife Service: Every 15,000 km?

I drive a Volkswagen Passat 3C Bluemotion, with a 1.9-liter engine and 81 kW of power.
Approximate annual mileage: 25,000 km. Primarily medium-distance trips, with approximately 1/3 highway driving. Speed range: 100-160 km/h. Occasionally, shorter trips may be driven at higher speeds with full acceleration.
Despite the long-life service interval, I received service reminders at approximately 15,000 km and 30,000 km.
According to the workshop, the long-life service interval is set correctly.
Could that be possible?
I read in the forum that the control unit also analyzes the starting behavior - could the start-stop system potentially have a negative impact here?

We had that already, see here:

Okay, I'm ready. Please provide the German text you want me to translate.

t-w-j wrote:

... Does the start-stop system

potentially have a negative impact here?

Yes!