On the other side of it, I've been following Brilliant Labs' Halo smartglasses since they were announced last summer, with a shipping date of "November 2025"... which soon became "Q4 2025", then every two weeks since then has been another delay. As of October we finally confirmed that nearly a dozen people had received units.
So yeah, I don't think it's unwarranted to be skeptical when somebody shows an AI render and says "we'll ship this within 6 months".