I see that being said about Martin a lot, but I can't say I've seen that at all. Perhaps it's like that on X, but on the forums the views of him are almost universally negative, with a few, such as myself, offering a somewhat half hearted defence.
Again no mention of Duff. If we were shit a lot of the time under Martin, we were even shittier under Duff. I can't help but think that his dour, northern working class persona is the reason he gets a free ride. Harder to hate than Martin's persona (although ironically Martin had a very tough working class upbringing).