I reckon it's more likely to be the way that any criticism is put across, that determines how's it's taken, rather than whatever criticism itself. There's always likely to be certain things that not every Star Wars fan is going to agree on, be they professional or fanboy.
What's beyond dispute though is the sheer commitment and quality from Adywan that is on display on his project. That outweighs whatever anyone may not agree with, at the end of the day.