I think general the situation of simple render software (red curve) vs complex render software (black curve) is, that per simple UI you get very fast a quite good result for a specific work range and after a while you can't improve your render output anymore. A complex software needs a long learning time, but there is a lot of potential to improve the quality and to solve a wide range of render jobs. For a pro user the black learning curve is no problem and allow to reach a very high level of quality. The red curve allow beginners and non-daily-user to quick solve render jobs.
For me as pro user it means I use Enscape for a limited range of tasks only or I jump to a more complex software later. A dream would be Enscape can be used in both ways.
It's true what you wrote. However I don't think pro users like you are Enscape's target market. I think they are more aiming for everyday users who want quickly render good enough images and really do not want to spend the time learning all the complexity of pro rendering. And besides pro market is pretty well covered with great and strong render engines so for Enscape trying to compete with them would likely be a suicide.