When someone says, "It doesn't feel like Star Trek," what they mean is, "It doesn't feel like GOOD Star Trek," which is a perfectly valid statement.
No, what the mean is, "It doesn't feel like the Star Trek
I'm used to and I don't like it."
J is right, they are using the "It doesn't feel like Star Trek" to invalidate the movies as being
Star Trek at all. Which is factually an incorrect thing to say.
The feel of Star Trek has evolved over time, and a feeling does not validate or invalidate a piece of work as a Star Trek IP.