I don't know I can't judge or assess other people's decisions whether it's a stupid decision or a brilliant decision.
But I think it's fine to sell some of your land, a good move in my opinion as long as you are not greedy to sell all your land or your property to invest in Bitcoin.
Because in my opinion land assets will actually be very useful someday whether I will rent it out or for build a business, a house for my children or maybe I will just pass it on to my children.
If you want to take advantage of the opportunities that exist by selling part of your land, that's your right and everyone will definitely take their own risks to try to take advantage of opportunities to get multiple profits from Bitocin.