No, it's no use. With ACM, it shows contacts, including even their colors and tails. The only thing that changes when you disable "god's eye" mode is that the contacts disappear when you zoom all the way in.
And that's
with the "Lite Map" add-on, which is supposed to "not only reenable Harbors on the map but also brings back overlays of the sub, colored map contacts and speed trails
(on lower diff levels ofc)." (emphasis mine) Even with 100% realism, they're there.
Either the description is wrong (which I doubt), or something's going on I'm too new to understand.