I think the ski jump concept was dead on arrival. The QEs and Liaonings (to say nothing of the vikrant) are unsuitable for combat against a peer opponent.
It’s main shortcoming would be an inability to launch heavily loaded strike missions like a catapult equipped carrier can. If ski jump carrier is all you have, then your carrier force would be at a disadvantage fighting a catapult carrier force in blue water. But ski jump carrier does not suffer much if it is used as a CAP carrier operating lightly loaded fighters on combat air patrol missions over the fleet itself. So ski jump carriers can be an economic means to strengthen the defence of a multi-carrier task force that includes several catapult carriers.
So, the value of a ski carrier in Chinese hands as a component of a fleet that can fight a peer power would likely be very different from ski carriers in the Royal Navy or the Indian Navy.
The reason is intended eventual force composition. The QE class is the only British carrier class for the foreseeable future. So ski jump carrier is all she would have. India also seem to plan just a few carriers. She may built a catapult carrier or two, but given that carriers have to rotate through dock yards, ski jump carriers might be all she has available in time of emergency.
China clearly intends to build at least 4 larger catapult carriers. This allows the ski carriers to group up with catapult carriers into task forces that might consist of 2 catapult carriers, and 1 ski carrier. This would potentially allow the catapult carriers to offload major continuous fleet defense air operations such as combat air patrol and fleet defensive anti-submarine patrol to the ski carrier, allowing the catapult carriers to concentrate on strike missions and their fighter escorts. This potentially greatly simplify coordinate carrier air operation, because timing and rhythm of offensive air operation need not be disrupted by the need for the same carrier to continuous cycle defensive air assets like ASW helicopters and CAP fighters from its decks.
I think a closer reading of how the USN conducted its carrier operations against the Japanese using separate light carriers dedicated to defensive and fleet carriers to offensive air operation in the 1944 time frame would offer invaluable insight into how the Chinese could operate their ski carriers in coordination with catapult carriers.