I use a Truglo red dot for slugs from a rifled slug barrel. I feel the red dot helps me be more accurate.
I think you need to consider all the key shotgun accuracy factors. To me, those are barrel to gun fit, slug to bore type match, trigger, scope quality, etc. frankly, I think my barrel to receiver fit is limited to 150 yards. That is a Mossy 930, rifled barrel, Fusion Slugs and a truglo dot sight. To me, an EOTech would be a waste of $250 on this setup.