The YOUNG AVENGERS have a half Kree/Skrull member and the RUNAWAYS have a Skrull member, I guess Cornell didn't want to follow the trend with new teams. Even SHE-HULK had a Skrull partner after a while.
Me? I've had enough of Skrulls, so I didn't mind the break. Plus, Cornell was playing with the idea of the invading Skrulls being so extreme to their beliefs that they were willing to kill even their own kind if they didn't share the same feelings. Likely an allegory to some extreme Muslim terrorists who will kill fellow Muslims if their version of Islam beliefs differ.