I like the new way it is actually quicker if you know what you are doing. I think most of the complaints are from people who haven't developed effective ploughing/harvesting strategies.
As for limiting workers I think that should be left to each farmer to decide. I never hire more than 2 anyway and always give them the option to plough. Whenever I am employed to work on a farm that is already over run with workers I simply leave.
I don't think a fire button is necessary and think that could be open to abuse.
A happy farmer here please keep the changes!
