Sadly this exact fix seems to have caused my WLAN lockups.
After enabling it the GPS accuracy improved, but I noticed that my WLAN would be shot almost every morning (stuck in state "turning off...", could only be revived by rebooting).
After reverting the GPS settings to "standalone" a couple days ago I have not seen any more WLAN lockups.
My suspicion is that the fix causes the GPS subsystem to force-enable WLAN at regular intervals when it tries to pull updates from the internet server. This "force-enabling" seems to confuse the regular android/samsung WLAN manager and leaves it in a broken state as described above...
Either way, not an acceptable state of affairs for what is supposed to be a high-end smartphone.
