Maybe because I have been an artist since I was 2 yrs. old, and was thusly educated, I have been around criticism for over 50 years. I have learned no one is perfect, and unless someone ask for help and direction, it's better to not point out what you feel is something negative. There is a saying I use when people complain about what they think I should do with my projects. It's 'they are teaching traditions of man as gods law. The same can be said about those who consider themselves quilt police. Fabric artist (quilting) will always have a freedom of choice. What someone might consider a mistake, will make a quilt a one of a kind item.
I folded a row in my daughter's quilt because it was to long, and with velcro added she has a hidden pocket, in which to hide things from her growing children. It's an original one of a kind quilt of which I am very proud. Quilting a part of art is subjective. Always encourage some one to try their best, never compare them to anyone.