There's inevitably the potential for person-to-person contact in business anyway, yes, even running a mulch yard, delivering mulch, getting a receipt signed on delivery, etc. It's not unreasonable at all to shut down all non-essential businesses until our healthcare system starts operating under its maximum capacity again, and to define "essential" strictly.

Given that we're in the early stages of the worst pandemic to hit the world in over a century, like you, I too can't bring myself to be angry about landscaping being shuttered, or jet skis, or whatever other silly unnecessary things people are complaining about. If even one more person dies because a landscaping company opened back up a month earlier, then it wasn't worth it. And that's easily a possibility we're looking at here.

What you're not thinking of is that restrictions such as this also cost lives. Suicides will be up and there will be much more economic stress afterwards.