I think these would be a terrible choice for any type of backcountry riding, forget about splitting. Look at that sole, looks like zero tread. Also would not recommend trying crampons on these. (For the pons, you want a very stiff sole, these look like they have the opposite.)
The rovers are soft flex. Good boot if you like surfy soft boots. Good idea to treat the leather with nik wax or similar. ***edit oops I was talking about last years rover. Don't know about the boots you linked to .