Yes. Nobody wants to shovel shit if they don't have too so it's pretty common to have a small tractor, bob cat, or skid steer to make cleaning up much easier. Considering how many animals they have it's not what you'd call a neglected amount. The bigger issues with this is 1. There's no concrete pad to place it on to protect the land or water from run off, further polluting the land 2. They don't seem to be doing anything with it. Just piling it higher/all over the place? 3. They don't seem to be doing anything with it- either composting or recycling it into fertilizer. and 4. Because they're not doing anything with it, that means they've got ever increasing shit piles that will freeze / get rained on and be even more of a mess because it's not be reused- or removed.
There's a lady on youtube from Canada who does sheep/lambs for meat while her husband does a variety of crops, her sheep manure is converted into fertilizer for his crops. I don't know about Alpaca poop being used for similar but another issue is the tranch isn't growing anything, besides their animal hoard. There's no crop for them to plant and harvest to utilize the fertilizer aspect. So it's just shit piles. I don't even know if someone else would take it from them given the feed quality of the Alpacas is probably subpar.
I know these people make no sense but why the hell are they digging up the land anyway? You've already done the damage and created a barren wasteland. Aerating the soil isn't going to undo the damage you've already done, it's just making a bigger mess of the place because now it's not even hard packed earth. No way would they'd manage to have a good yield crop wise, without even considering the weather in the area and what could thrive there. Edit: and even if they tried to plant their animals would probably eat anything growing at the slightest opportunity. They're not planting cover crop and they probably wouldn't be able to for a similar issue.
Their land grows ever more desolate.