as far as muesli mixes go that is not the worst as it doesn't contain seeds or anything that should be completely avoided other than the weird red chunks which I have no idea what they are so I used to pick them out. That said may of the ingredients are occasional treats at best and really aren't great for piggy's not to mention that muesli mixes aren't usually a good idea for piggy's anyway. I used to use this mix in my boys treat ball and foraging toys but not any more since I discovered piggie parcels dried forage and started occasionally putting the boys usual pellets into their treat ball for added enrichment. I have never had the other ones but they look very surgery and not something I would ever give my boys.
For treats mine get a strawberry top, blueberry or a bit of banana or melon skin. Atm they have some forage from piggy parcels sprinkled with Pro C every morning to help build up their winter reserves as they are in an unheated garage (they have lots to keep them warm).