Interesting hypothesis but incorrect IMO.
ZIRP was created by governments not markets for two reasons:
1. It's the real part of the bank bailout that MSM don't comment on much 'cos it's boring - banks get the 0%, all their new customers and some of the old get 5%-15% and the profit rebuilds the bank balance sheet.
2. It was the soft landing solution to GFC1. It has avoided many overleveraged creditors from becoming insolvent and instead allowed some of them to slowly unwind their positions, others will still go bust as the rates now rise.
IMO you are making the mistake of assuming that ZIRP are here to stay forever. A similar mistake made by those who say stooopid house prices are here to stay forever.
What next? IRs up.
E.g. Eurozone euribor. Was 0.4% Now 0.8% and rising fast.
http://www.suomenpankki.fi/Stats/default.aspx?r=/tilastot/markkina-_ja_hallinnolliset_korot/euriborkorot_pv_chrt_en