Helena B and Dick’s relationship was kinda boring and unnecessary.
Helena W and Dick’s (Earth 2) was just weird because they were supposed to be adopted siblings.
But Helena B and Bruce’s relationship isn’t strange because they are not related in any way, shape, or form. It’s more of a mentor “butting heads” type situation. Helena B has evolved into her own character with issues and associates but I’m sure they pushed that Huntress/Nightwing crossover affair as a nod to Helena Wayne and Earth-2 Dick fiasco, which is weirder.