If your image is rejected because it did not meet the criteria... Then it is a rejection. You get dinged! Oh well... Besides getting your pride hurt.. What do rejections really do to hurt you? Decrease your uploads? Cut your chances of being featured? I think yes to those things .. But what they really say is go back to the drawing board.. Your missing something! The acceptance ratio is the boogie man and will freeze you in your tracks!
If these things seem unfair or hurt your feelings you may be looking at stock as a hobby and not a business. Hobbies are fun, business is cold! It is possible to have a hobby that is fun yet cold and calculating! This isn't a hobby for DT.
Many of the editors are also contributors and know how hard it is to get a quality image that is not only accepted but also sells.
The responsibility lies with the contributor as a seller of their imagery to provide DT with quality images with a potential for sales.
Two brown eyes and an open mind.