I think the point is being made is that one could easily be
forgiven for thinking that's the general opinion of QF fans... they are genuinely willing to overlook anything.
The list of reasons to dismiss anything negative about QF is extensive - anything and everything including from drooping beds on the A380, the 'new' suites on the A330 now being second generation, no PJs on day flights, stroppy crew, angled beds still flying around, under-catering or lack of choice by the time they get to row 3 on a 737... just a few of the things that QF fans seem to be able to explain away.
The only thing that hasn't been dismissed? Glacially slow meal service - no one seems to be able to argue in favour of that!