whats the issue with the new back country gloves ? Seem likes a glove that is just a bit easier to get on.
Back Countries are good boots & are Glove shells with a Trail top, so wouldn't call them easier than Gloves, but they're certainly easy. They are more lenient size-wise though, as the uppers keep them on. The problem with high profile boots of any kind with a lot of riding is that they can rub. Theoretically they shouldn't 'pop off' easily, but having only Velcro, it's possible, especially if the velcro gets clogged with mud & stops working too well. So I would be thinking Epics or such.
But I do believe one problem with boots generally is indeed grip. Slippery surfaces can be a problem & I've ridden in slick clay years ago in shoes, galloping wildly around tracks(was young & reckless!) that the horse has had trouble even walking around in regular boots(one ride I felt too insecure to ride & my horse slipped around behind me as I led him!). I've found the Grips great for that sort of environment, but the tread just won't last well in 'normal' situations. Another alternative for extra grip is that you can get studs for regular boots, but I don't have any experience with those.