Hmmm, I'd agree if the issues were all performance-related, or if the author had said "make sure to let us know if you are a large deployment." What the author actually said was "large or impressive" and that point was reinforced several times. I don't know how you measure "impressive" but it sounds a lot like "special" to me.
I imagine if you were using their product in an HFT setup (somehow) with only a few servers, but with sub millisecond requirements they might also be interested.
