I also think some people just complain for the sake of complaining. I do really love the accessibility feature and for new players, it's super helpful to see right away which key to press. I don't get distracted by it, so I would assume it's just preference, even though I might be in the minority with it.
And don't blame it on Frontier if you were either too lazy to go through all the settings (which appear to be quite extended with many options) - or just didn't have the chance to get early access.
Wait for the final game in 2 days, play it yourself and THEN judge it. This kind of nit picking is really tireting at some point.. (if it's a broken feature or bug, of course I agree to critique!).