Well, that sounds reasonable… even beneficial. But, unfortunately, that's not really the whole story.
When QE was implemented, the purchasing power was weak and both government and personal debt had become so great that further borrowing would not solve the problem; it would only postpone it and, in the end, exacerbate it. Effectively, QE is not a solution to an economic problem, it's a bonus of epic proportions, given to banks by governments, at the expense of the taxpayer.
But, of course, we shouldn't be surprised that governments have passed off a massive redistribution of wealth from the taxpayer to their pals in the banking sector with such clever terms. Governments of today have become extremely adept at creating euphemisms for their misdeeds in order to pull the wool over the eyes of the populace.