JW's make enemies constantly through their words and actions. You'd think they'd come to congratulate her, and at least try to make a good impression on her. But they're afraid of spiritual contamination from you & your wife.
Well your daughter will carry on fine without JW's in her life. She just gained an object lesson about the kind of people they really are. She's gotten Witness-proofed, and that's probably a very good thing.
Congratulations for her graduation and on those scholarships. It sounds like she has a very bright future.