Yeah they will certainly take faults / non fault claims from a car and factor it it into your bike insurance but like #&>@ they will take no claims discount history from a car and attribute it to your bike insurance (or vice verca for both)
I had a nice long "discussion" with a insurance sales rep on this very matter, they couldn't answer why one that benefitted them was OK and a very much related factor, and one that benefitted the customer was in their eyes a completely different and un related factor, that in no way would be considered because it was on a completely different class of vehicle.
They didn't seem to understand the contradiction.
I tried to ask if they herd the phrase what's good for the goose is good for the gander and suggested their company Google it (its not the sales reps fault they are just doing what the company demands)
The response was that's not how insurance works