Some complexity is of course an inherent part of the domain, and you can never truly get around it. At best you can stick to sensible defaults for the basic user and initially hide the most complicated parts until they are needed.

On the other hand: there is no reason whatsoever something as trivial as drawing a circle has to be as complicated as launching a rocket in GIMP. It certainly doesn't lack the technological scaffolding, and UX-wise people would already be ecstatic if they just cloned how 30-year-old version of Microsoft Paint did it. So why doesn't it have a Circle Tool yet, despite the massive amount of requests for it? The only possible explanation left seems to be an active disdain towards basic non-technical people: the UI is hard to use because they want it to be hard to use.