Some of that may be down to the use of standard CAP 168 settings, which personally I feel are often too high. However, you don't depart from the standard now, unless you have good reason. Also, nothing stops aircrew asking for them to be set down a notch.
Another minor snag with LEDs is that you don't get an indication of where the runway edge is after a snowfall.
If you want to support EVS operations, then it might be necessary to install a heating element in the LEDs. It depends on the level of EVS traffic you have and its commercial importance.