I've always wondered how a traveller really knows what fare bucket they are in if they go through a travel agent. Most online tools belonging to the airlines dont actually show you (just shows the class of travel). I've generally flown J so dont usually need to worry about if I will get points or not.
Regardless, it seems like you were shafted on this occasion but theres not much you can really do about it besides having a spew at Velocty. I've had a few issues with EY flights crediting and had to specifically get Virgin Australia involved here on AFF to get it sorted. I guess your case would be strengthend by having a screenshot showing class = "T".
Note that I am somewhat confused as "T" fare bucket doesn't appear under Etihad on the SC link you provided above. Does this mean that you get 0? You would think that if there was a 0 earn rate that it would be listed there. Also, "T" fare bucket appears under Virgin Australia so perhaps you were on codeshare? If you were - you would think that you would get at least a 0.5 earn rate. Definitely worth following up with them.