Why specifically mention N-reg?
There are FAR more amateurs flying G-reg, than N-reg - the main (but not sole) reason being that G-reg is what one trains in, and what most rent thereafter.
Also N-reg (Euro based) maintenance is on the whole to a far higher standard, simply because most of the pilots are owners, with the requisite budgets. A far higher % of G-reg pilots are renters.
I have 120 hours in various Gs and cringe when I think what I used to have to climb into. I'd really have to plumb the depths of sheds on UK's farm strips to find an N in such a lousy maintenance state, whereas it's pretty normal for the UK training / self fly hire fleet.
This is getting like the AAIB reports - dragging out N-reg and commenting on licensing issues when it is irrelevant to the incident.