Same here. I have been grinding for nine years. I always tell my customers I will do a "rough coverup" of the hole but I do not haul off, rake, or landscape the area. I have NEVER lost a job because of that. My grinder has a blade on it so I will pull the chips back over the hole with the machine. If it is some old man or old woman (Okay, I am seventy years old so they have to be really old), who is infirm, I will spend more time on dressing it up but that is rare.
We'll haul mulch, but it's bid as a separate service, so the customer can accept the price or reject it.
We do municipal grinding contracts and they always want the mulch hauled, then soil and seeded.