If the fixtures do not diffuse the light from the extremely bright LED into a beam over several cm, then I would expect you to potentially get problems with perception. As a 5mm pupil is good for seeing a resolution of about 1cm at 100m. If you present several bright points a few cm apart that might start to look odd. I suspect the biggest thing is just relatively glaring brightness compared with old style lighting.
At night, I find LED road traffic lights odd to look at once within about 5-10m, and they have a few mm separation between the LEDs.