When I write, record, mix and master a song, I send it out to other people first to get feedback. I send it to both professionals and non professionals, and both criticisms are equally valuable to improve my product.
I know an amateur brewer who is working to perfect a few recipes for eventual distribution. After each batch he puts a beer in the hands of a wide range of people to get feedback, again to improve his product.
True, some of the feedback I might choose to disregard, but that is true about the input I get both from pros and amateurs.
When you have the majority of fans, several other teammates, sports columnists and commentators and other NFL organizations making reference to areas of improvement, you should maybe pay attention.
Focusing on areas of largest weakness, brought to attention from feedback, can yield the biggest percentage of improvement because there is more room to improve.
If I hit 90℅ of fairways with my drives, but only make 50℅ of my 4' putts, I can lower my score much more drastically by practicing my weakest area-4'putts. If I spent 80℅ of my time practicing drives and 20℅ on putting, I am not going to realize significant improvement.