Hi. Yes, the ATC voice and the pilot are sometimes exactly the same, to weird effect. It's not that rare either (though 'it happens a lot' was an exaggeration!). It seems to happen to any voice, randomly, so excluding one voice set wouldn't help.
I did point this out once before, some time back, and Dave M. commented 'yes, it sometimes happens', so he knows about it at least. Maybe there's nothing to be done about it, since he didn't comment further (though, as I say, I'd be surprised if that were so); he usually does fix stuff that is fixable.