Which means that Aramaki fucking executed them right there.
Then, he had a phone call, got distracted and left.
We didn't see them dead, we didn't even see them unconcious like we did when Sanji and Zoro defeated them, and we didn't even see King getting penetrated or sucked.
This is only your assumption that Aramaki finished what he intended to do.
Plus it gave Oda an easy way just phase out the commanders and officers easily