>>11851111It's only an atrocity because you make it seem like one. It is you yourself who only sees the bastard offspring of Lugia and Darkrai when looking at Yveltal.
Are there some similarities with Lugia if you honestly look at them side-by-side? Sure, but there are many Pokemon that have some similar body shapes to others.
If you constantly get hung up on all the minor things in a Pokemon's design, and keep comparing it to an older one or trying to find reasons to, you'll end a total and complete grump.
In other words, Hakuna Matata.