yes its a good thing, goodyear welting is one of, if not the most, durable construction method to hold the upper to the outsole.
thats actually a really cheap price for a boot with that much leather and goodyear welt construction. they are saying its 1.2-1.4 leather used on the uppers, thats pretty thin for a durable riding boot, most work boots use around 2.0-2.2mm leather on uppers. nice looking boot though. Let us know how they hold up if you buy them.
As for one that has crashed on pavement at over 100mph I can say those boots would do little or nothing for protection even in an under 30mph crash. And they look rather fem too.