I don't know, we didn't experience that at all. The wd-40 dried just fine
I should clarify that this g10 was textured formed with a pattern so buffing may not have been appropriate for them. Buffing would have smoothed the pattern and ruined the look.
I don't want to come across as argumentative but this maker sells 1000 knives per month, all g10 scales. If what you said was the case for them, their customer service calls would overwhelm them I think.
Perhaps buffing is the best way. I was just offering my experience and that of a production maker and answering the OP.
The OP should try the various suggestions and see what works best for him.
Regards