Everyone should be completely free to explore their gender and sexuality as they see fit. Questioning one's situation should be seen as good. And if in the end of that questioning the answer is "I'm cis" or "I'm straight" then that's totally fine too. And shouldn't be seen as a problem. It doesn't mean queer identities are invalid.
There's also the fact that many detransitioners do so because of social for familial pressure, not because they aren't actually trans. If you come out as trans, and your entire family and friend group decided to shun you, or your work isn't supportive, etc., and you face massive amounts of hate and ostracism, you might decide that going back into the closet is the way to go so you don't have to deal with that.
It's all a nightmare of a situation that shouldn't have to exist