I just contact the Guest line this morning to redeem a ticket in SN (bru-muc).
Unfortunately they could not redeem such a ticket because itīs a code share with LH and you cannot use Etihad miles in such flights (guest line information)
Indeed Munich is not in the list of cities available for redeeming.
I confirmed that the values in the chart are return, so you would have to pay, from what I understood 17k miles (which is good value in my opinion!)
They also told me that you are liable to pay the taxes and fuel surcharge, which is quite a lot.
Also the availability is quite limited! I also checked a trip bru -> waw and I could only find dates in July (ok, in fact I just said dates that were holidays in Belgium + weekends, so this could be the reason). The trip to WAW would be 10K miles + around 120 euro in taxes. The tickets for the same dates are 200 euro.
Btw, I had a VERY GOOD experience in the call center. Execellent agent, good english (strong oriental accent, but thatīs normal) and very interested in solving my problem.