I used to get this all the time.
I used to throw urethane a lot, and guys on the other team would make remarks, gripe, and accuse me of using it only to ruin their shot. They never looked at the fact that I was averaging well over 200 with it, or the fact that it was working really well for me, and in fact, they usually ended up shooting HIGHER than usual themselves, which I always attributed to the fact that my urethane ball kept enough oil in the track that they didn’t just burn it the f*** up immediately, and the shot actually had a bit of hold area for them.
The lay person just does not fully understand, they just tend to parrot the “popular†opinion that they have heard before themselves.
I am a team bowler when in that environment, and will do whatever it takes to help the team win. Hopefully, that includes me doing well myself.