My take is that the wizard is the least likely class to survive a d/c, UA or no, as they are the class with the most proactive defenses. NDE allows a monk to survive a d/c rather well due to the ridiculous tankishness they can achieve, making the save worth a metric butt ton of EHP, even when standing still. The same is somewhat also true with the WD save, as it offers a couple of precious seconds of invisibility. If your connection is stable, and you are not fighting above your gear, it's likely worthwhile to remove UA, imo.
Hardcore Diablo 1/2/3/4 & Retail/Classic WoW adventurer.