If ceramic clutches were any good OEM's would have started installing them a long time ago.
Some interesting info about the origin of the ceramic clutch sold by Touratech.
These clutches are made in South Africa and although I have not been able to find the manufacturer direct I know that similar clutches made for car models sells for around 75$ US. The price from Touratech is around 560.80$ US.
I personally know the supplier or the company that used to supply Touratech and he has a reputation for asking the most incredible prices for any work or parts from his workshop. Now wonder the extremely inflated price by the time it is sold by Touratech.

The worst is that this clutch offer no advantage over the standard clutch fitted to your BMW model.
For a clutch to withstand tough conditions for longer it must have an enlarged friction area, this will prevent the clutch from slipping under heavy load like driving in thick sand with off-road tires.
The ceramic clutch offer far less friction area so will be more prone to slippage.
So what if you can't destroyed the ceramic clutch when it start slipping, all it will do is start to destroy the more expensive parts of the clutch like the clutch spring plate and the housing cover.
If you want to improve the clutch you can get the racing clutch from HPN, this will mean you will have to replace all the clutch components but will still cost less than buying the ceramic clutch for which they recommend that you replace the other components of the clutch for better relayability an any case.
By the way the clutch supplied by HPN has been proven in the Paris to Dakar rally many times over.