It's designed to handle a one engine takeoff even when fully loaded, just in case an engine fails above V1. Sure, it's not actually designed to go from standst

It's designed to handle a one engine takeoff even when fully loaded, just in case an engine fails above V1. Sure, it's not actually designed to go from standstill to V1 on a single engine, but it shouldn't have any problems. It's just going to increase the takeoff roll slightly (or decrease the maximum takeoff weight)