Engineer class is broken?

Maximus didn't had any synergy but still cooked and not even talking about my king Slippy

https://preview.redd.it/l45zsddytvkg1.png?width=1801&format=png&auto=webp&s=ae45930fc862d71ce40555133edac7920e1a4808

https://reddit.com/link/1rawy9d/video/f08dh0n5uvkg1/player