Especially considering the svg that a design tool produces is often gigantic. FWIW I have found svgcleaner to be better than svgo. svgo seems to have more bugs and chokes on svgs more often in my experience.
"SVGO's Missing GUI". Give it to the designers and they can make sure to give you the smallest possible file that makes sense. I find that some files look great at "0" precision, some require "1" or "2".