The use of the base plate (escutcheon) for this faucet is optional. You do not need to drill an additional hole or buy a different sink. You really only need two of the three holes if you use the soap/lotion dispenser.
See this: installation manual
You end up with the faucet in one hole, the soap dispenser in one hole, and covering the unused 3rd hole with a sink hole cover, like in this picture:
The hole covers come in practically any finish: