Another reasoning against the angled deck for the 076 LHD, apart from the fact where the 076 is actually still an LHD, instead of a fully-fledged CV:
View attachment 130456
Rough illustration made by @horobeyo on Twitter.
Having a ~100 meter EMCAT means that operations of heavier carrier-based aircraft onboard are expected/anticipated.
Subsequently, given the much shorter length of the LHD's flight deck compared to proper CVs - Having an angled deck literally makes
no difference to a straight deck in terms on how an aircraft that is landing on the LHD which missed the arresting wires is going to avoid another aircraft that is in the launch position - Simply because,
they both cannot.
The launch position of the EMCAT is going to eat into the landing deck in both straight and angled deck configurations either way. So why bother with an angled deck on the 076, when you could just uss a straight deck that can actually save more material and money for having basically similar results (i.e. impossible to have simultaneous landing and launching operations)?
And if you want to widen and/or lengthen the flight deck further just so that your angled landing deck can avoid the EMCAT launch position - Sooner or later, you will just end up with a proper CV instead. See how that "面多了加水,水多了加面" snowballing effect is going?
Furthermore, notice how the angled landing deck actually eats up much of the starboard side spaces at the stern section of the flight deck as well. Coupled with the EMCAT + EMCAT launch position, observe how small the spaces for parking, loading, refueling and servicing aircrafts and helicopters are left on the flight deck.
With a straight deck as seen on the 076, the LHD actually has the spaces along much of the entire length of the flight deck on the starboard side (bar the island superstructures) that can be used for parking, loading, refueling and servicing aircrafts and helicopters. That means at least several more aircrafts and helicopters that can be carried onboard.
So there's that.