If QE causes (hyper) inflation it will because of some very serious misjudgement of monetary economics, and I trust them not to do that.
Examples of where I wouldn't trust the custodians of fiat to manage its price level are as follows:
The need to print money to pay crippling reparations (Weimar)
The need to print money to pay for wars (WWII etc.)
The need to print money to pay for disproportionate defense needs (Israel)
The need to print (reserve) money to devalue massive trade imbalances (oil crisis of the 70s)
The need to print money to cover for disastrous economic mis-management (Venezuala)
The need to print money to fund massive corruption on high (Louis XVI, Robert Mugabe et al)
These are situations where there is a huge imbalance in the demands on the economy versus its capabilities. There is currently no evidence of any such imbalance in the economies that affect us.
QE is a technical monetary tactic to try and boost investment, it is not a desperate attempt to live way beyond one's means. It can be unwound as the need requires in a way the above phenomena could not be unwound.
But I could be wrong