🙈 'fraid I'm not sure which "TRON" you're referring to, I'm a bit uncultured
But I doubt it's anything inherent about the word, I guess we must've tainted it over the past 3-4 decades? It's kind of likea miniature of the situation with, say, "negro" or "black": it's arguably not by-construction deragatory, but is made so through centuries of deragatory or dehumanizing usage.