The designation of 076 means that it is a LHD/LHA ship, anticipating it does some sort of CATOBAR operation with angled deck is too far a stretch (the usual one want everything to do everything), therefor my question.
I disagree somewhat.
Meeting the threshold to be a LHD/LHA requires the ship to have a proper well deck for deployment of amphibious assets and a vehicle carrying capacity internally... As well as a helicopter/rotary wing complement and flight deck.
(Of course there are also exceptions, like initial hulls of America class)
The 076 will have all those, this meeting the definition of a LHD/LHA, but we also expect it to have EM catapults and also arresting gear, which is rare/unprecedented for a LHD/LHA but we are all still going along with that designation because we expect it to retain the well deck and amphibious capability.
I do not see having an angled deck as being "too far" for it to be called an LHD/LHA, considering all of the other expected traits it will retain.
Putting it another way, with or without an angled deck, 076 will be a CATOBAR ship anyway. The difference is only whether the arrested recovery of its fixed wing aircraft are done on an angled deck or not.