1. As far as I know those who farmed the lvl 30 have got health refills for the gems spent - that's not exactly what most of them wanted, but yes, it's a compensation.
2. The wrong drop-unit was never advertised - it wasn't even in the general list of the drop units, you could only see it as possible drop unit when you opened the 'possible-rewads' list for the specific bosses.
3. And again: in my opinion everyone who is not stupid has known that he was farming a wrong drop-unit.... so stop complaining that it was not obvious
4. It would have been nice if gree would have compensated the spent honor - but as stated in 3 everybody who farmed this bosses knew what he was doing - so a compensation with health potions for the spent resources (gems/honor/time) is a fair deal - No one ever talked about a copmpensation of all resources 1:1, so no one should be called liar
and 5. the complete discussion here is very far away from the topic of this thread