[Goldar's Revenge]

Its not disrespectful at all. They never have used the Trini Character to profit off of Thuy Trang's passing. The show gave her a respectful in memory of. There is no real need to do anything with Trini outside of the Movie Universe. Her character can still live on in the expanded universe, I'm talking more about film and tv. But in any case, just because an actor dies, you don't have to say their character died.

In the Fast and Furious Films they didn't say Brian died just because of Paul Walker. They came up with a way to retire him. It remains to be seen what Star Wars will do with Carrie Fisher. But Power Rangers never had to worry about explaining the characters absence, since she was long written off.