If you make a career out of one point of view you eventually make yourself totally irrelevant as you can't give it up and acknowledge what's actually happening.
Well he's not predicting doom exactly, just stagnant growth and inflation. It's certainly not outside the realm of possibility. If money printing can actually manage to stave off a deflationary crash then it's probably the most likely outcome.
The hyperinflation and dollar collapse scenario some are predicting is much more outlandish. Frankly so is the V-bottom economic recovery scenario. Something in between seems rather likely.