You can add a pull tab and have someone else pull it down. At least on my Roka, once you open the zipper tab you just pull the shoulders and it unzips.
You will need someone to zip it up for you, but when you’re running into T1, all you do is flip the zipper (up or down, I can’t remember) and pull the shoulders apart. It’s actually WAY easier to remove than a wetsuit.
also, dental floss is crazy strong. if all else fails, tie a loop of dental floss to the zipper pull and then you may have an easier time reaching it when you get out of the water.