To be fair, huge fields shouldn't be a one man job. Even in the picture you posted you can see 2 people working the field
I understand where this is coming from, and I've wished I had something like this too back when I was farming. But this game was clearly created with the idea of players joining together to help each others. If you have huge fields, you're either farming way more than you need, or you're part of a larger village that should, at some point, get a second farmer.