That's interesting Monica - we almost moved our current account to Nationwide (elsewhere, but also inc Travel Ins) but of course, I needed to check out the insurance cover because if they charged a lot more for it or refused me, I'd then be scratting round elsewhere for cover and frankly, didn't want the hassle. I like it being sorted, knowing we're OK, don't have to do anything and it's just one less thing to ever have to worry about.
But the insurers won't tell you upfront whether they'll cover you or not. Similarly the trip limit is 30 days and so we'd have to increase that and again dunno how much. So we didn't move our bank account, even though it would save us over ?200 a year, as we might have to pay more than that for insurance, esp as we get older and more and more decrepit .... !