That is precisely my reasoning. I'd rather have it & not need it than need it & not have it. It will give you far more flexibility & it will sound better.
Receivers are wonderful convenient one stop shopping boxes, but they have to cut back on something & that something is power. Having a separate amp like the Adcom ensures that your speakers will operate to their full potential & that when needed the power will be there when called upon.
It would appear that a great many on here unfortunately can hear no discernable difference when adding a powerful amp unless they turn up the volume. Hopefully you aren't one of them.
I'm not one of them, because I clearly hear the difference at all volume levels.
There is someone on here that was in between amps & their young son, could tell that the system sounded very different without the amp & he wanted to know what was wrong with it.
It is also very telling that usually unless they are testing a receiver for a report, any pair of speakers that are tested by Audioholics mgmt are done so with an amplifier in the mix.
For something that a good many on here find useless, it must have some benefits & not just at loud volume.
Since you already own the amplifiers, you might as well utilize them.