Hard to completely blame Pete - the counting of GS tourny wins was deemed a relevant criterion for GOAT status concurrently with his domination. I think it was largely media driven, and Pete played along with chasing the record. There was an ESPN article in 2000 or 2001 that discussed the chasing of the record and becoming the greatest ever. Pete also said something to the effect that he needed a FO to be considered. Oops.
"I can cry like Roger, itís just a shame I canít play like him." - Andy Murray