In no possible scenario would Andre ever have won 7-8 USO. Even if he had won all editions where he faced Pete, he would have 6, all the other years he lost against other opponents. We should not blow this depression after 95 thing out of proportion. He might have underperformed in 96 a little and definitely in 97, but at the latest in 98 he was fully back on track and nevertheless lost against Kucera. In 90, he would have faced Lendl or Mac if it weren’t for Pete, which is not a foregone conclusion, considering that those are two of the most successful USO players with tons of experience against a 20 years old, inconsistent young player in his second slam final. Also very arguable that he would have won 2001, even without Pete. Going through Safin and Hewitt back to back is by no means an easy task. 95 and 2002 would probably be his, here I can agree.
Even less however, I see him winning 3 Wimbledons. He would have good chances to win in 99, but very unlikely he wins 93. His serve was seriously hampered by his wrist injury and he wouldn’t have beaten Becker and peak Courier back to back. Not sure, why you are mentioning 98. Andre lost in the second round against Haas, this would have happened regardless of Pete.