What is a better option? Before your answer, remember it sometimes really is the case that the economy is down and in two years things will recover and everything will rent out again. Your answer needs to smooth that out.
Where do we draw the line between reality and fantasy then? If the terms of a deal are not reflecting the reality of the moment (i.e. the office rent market demand quotes) but some figure people come up with on their own, then let's call it what it is -- gambling (in which case it should be treated as such).
Not sure what you mean. What I mean is that I am fine with policies that effectively force the building owner to lower the rent (if their net worth is high enough) even if it means they take a loss, because I am fine with forcing people with lots of money to take losses. So the rent will go down.