Is this the yield curve substitute indicator? Reverse Repurchase

Overnight Reverse Repurchase Agreements act more swiftly as lenders of last resort during periods of market stress, is this the "fuel" remaining to avert the next crisis ? Yield curve based indicators, simply doesn't work now because of QE program that makes the yield distortion, Harvey Campbell says that last year, the creator of the Yield Curve indicator...
Bloomberg article " Economist says his indicator that predicted 8 US recessions is wrong this year "