Nah, you're right in that it's still a useful indicator of quality, generally. Though, if a product has proven itself, then where it's made becomes less relevant is all. Also, for me, U.S.-made with U.S.-sourced materials is always my priority, so beyond that, everything non-U.S. is fair game for me, lol.
Between this and your jodhpur... These are created on existing lasts, correct? So just bespoke patterns for you? How much of a premium is this costing you, roughly, to have Meermin create for you whatever you desire?