No, it’s the modern, basic portrayal of those characters and their issues that’s the problem.
Star Trek is supposed to reflect on human problems and foibles with allegory. Not just slap you across the face with, “see, gays are normal, too!” Yes, we watch Star Trek. We know. Make it more interesting with an allegory tied to a other characters that aren’t supposed to be professional officers from a species that’s prescribed as already past these issues.
By putting so much basic and direct human drama in STD, they bastardized the entire bluepeint of the show.