As long as Lufthansa's customers are happy to continue paying the higher airfares needed to support the pilots generous packages, the company remains profitable and isn't begging for taxpayer handouts then I can see no problem.
I also doubt the cost of LH pilot labour amounts to more than a few percentage points of LH's total costs. As usual we pilots overestimate our cost to the operation and underestimate our value, almost as if deep down we felt we shouldn't be paid as much as we are for a job we often love. Typically, we would rather drag down colleagues with better Terms and Conditions to our level, rather than aspire to raise our package to their level.
I say good luck to our LH colleagues.