As one of those older Americans who has family in the DFW area, I don't find it to be a bad name; it's just a name people will associate it with that part of history. It's still labeled a conspiracy theory and the declassified redacted documents from 2022 still don't support the theory. Nevertheless, it would be nice to find some new meaning associated with the phrase. Grassy Knoll is rather generic and probably shouldn't be overshadowed by this historical event.
Wife just reminded me. I forgot to mention that we (I many times) were on the Grassy Knoll in September with people taking selfies toward where JFK was shot. That was rather unexpected, but I guess things change over time and we should move forward. v/r Doug