Just wondering, since I haven't seen a house in decades that had a dishwasher but didn't have a sink-drain grinder.
I have heard that connecting it this way is partly done so there's an air gap between dishwasher and drains, and I'm guessing that installing without the macerator might require a vacuum breaker or something of that sort... but I'd sorta liks to know for sure.
(My place has both, but I'd really be just as glad to jettison the macerator.)