stuff
I've also felt the Dominator underperforms, turns out speed is important. Speaking of which... you tested the eagle with only the dissipation buff? In my experience the speed/acceleration buff to the eagle makes a massive difference.
As for the eagle being a "line holder" I find that's more of the falcon's niche. With HVD + ion beam it has the speed and range to kite basically anything it can't kill... including radiants. Sure, waiting on other ships to score the kill is generally unreliable but I've found bombers do the job pretty well. Plus you can always give them small breaches for anti armour since HVDs do decent hull damage.