Debt-financed consumption won't help the long term debt cycle, but increasing consumption seems like it could still be an element of economic growth.
For example investments have two sides the saver (who loans the money) and the borrower for the building, infrastructure, factory, etc. Normally the interest rate can be raised to encourage saving and discourage investment, or lowered to discourage saving and encourage investment.
But what if the interest rate is already low, and companies still don't want to invest? Then you are limited by the amount of credit-worthy investment opportunities and not the savings. You could lower real interest rates to be negative, but do you really want to pursue investments with a negative yield?
In that case, turning some of those excess savings into consumption would help things move along. There already was more than enough savings, so that wasn't limiting investment. And the increased demand will stimulate the need for more buildings, factories, etc, and provide more opportunities for companies to invest (borrow) again.
China has wanted to lower its saving rate somewhat - they've used the government to build out infrastructure and real estate at a tremendous rate, but it's unlikely that they will be able to find enough infrastructure investments (that are actually good investments, with positive returns) to keep going at the same pace forever.
Interest rates are pretty low right now, and companies are accumulating huge cash balances (rather than investing) so the idea for more consumption to increase investment opportunities doesn't seem too crazy. But if such a thing were to be attempted maybe it would be better to use tax policy or other means rather than increasing the debt indefinitely.
https://en.wikipedia.org/wiki/Global_saving_glut