Finding it quite interesting how black and white some people think things are.
One of the odd things that happens to pilots is that they begin to think differently. The answer to a simple question "how far away is X?" will often be answered in terms of time, "about half an hour". This is very relevant in this scenario.
For my money, if it's going to take 15 minutes to get on the ground then any field within approximately 15 minutes flying time is perfectly valid and I'd rather have extra minutes than too few as too few will increase the workload either by pressure or manoeuvring.
The difference will be whether the checklist says 'land at nearest suitable airport' or 'land IMMEDIATELY at nearest suitable airport'(my capitals).
In almost any case, except when there is a dire emergency, the deciding factor may well be cabin preparation.
And one can always point to the paragraph 'captain's discretion to deviate from...'.