if it's a more narrative-focused game, less tends to be more.
Yes and no. It all depends on what is less. The key to a more narrative game or theater of the mind, IMHO, is that the VTT needs to fade away. If it has clunky features or some things aren't supported so you're jumping back and forth randomly between the VTT and kludging with notes and dice, or supported with a poor interface that takes multiple clicks to do what it does, it can actually take more away than something with more features that are streamlined and have a good UI.