If they mostly work then all good, only need to get you as far as the next shop for another back up. I realise for you that might be a few hundred miles more than me but schwalbe claim they're better than butyl and as I'm basically not using them anyway that's enough for me.
Don't they have issues with patchability (this is not first hand info, just what I've read)
I guess its ok if you have a tubeless "malfunction" but if you're in a situation that has put unsealable holes into your tubeless tyres, a non patchable tube might not last very long.
If they mostly work then all good, only need to get you as far as the next shop for another back up. I realise for you that might be a few hundred miles more than me but schwalbe claim they're better than butyl and as I'm basically not using them anyway that's enough for me.