No. I don't want them to take away a really cool feature just because it may make an inconvenience for a small minority that have the ideal setup and a glossy screen that would make this an issue. If they want to have an option to turn the light off for those people, than by all means they should, but don't away a cool feature for the rest of us.
There's still no reason why they can't at least provide the option to turn it off. If you're not using it with the PS eye and don't care about its other uses (again, why would I be glancing at the controller to see how low my health is in Killzone?), it should be able to be turned off, plain and simple.