But the hull of 076 is still possible to be a new-era light aircraft carrier........
Outside type 076 does look like an aircraft carrier without angle deck but inside structure is that of an amphibious transport ship with a lot of spaces meant for LCAC, LCM, battle tanks and IFV etc.
The ship design team probably would have to spend as much time to modify a type 076 to the specs of a real aircraft carrier as much as the time required to design another new type of aircraft carrier. Then you have to test and verify the design, evaluate and modify the design and test again, and repeat the cycle until you are satisfied.
So if you need a few more aircraft carrier ASAP, might just build one based on the current blue prints which is already completed and accepted, such as Fujian. That is probably how Shandong came into being 002 after Liaoning.