One can indeed ask why the bank then doesn't find clearer words.
There is actually no profit made from funding programs. It's just effort. So that could be one reason.
People also notice how far the other party is in the planning and how much energy one now has to invest in the customer. I also think they have noticed that your plan is not completely thought through yet. The cost side is probably not right yet. And the 20k land price will certainly have to be questioned as well, how that came about. Maybe you can clarify that?