Well the whole point of a carrier is to be a floating airfield.
But if it can't accomplish that task and planes flop into the ocean instead... well then it's not a suitable airfield at all.
Yeah... you do realise what you are saying...
They had a problem with the arrester gear... it is not something you can fix in the field... it would be like Armata having a problem with its transmission.
If you sent the armata to Syria for testing and found a problem with its transmission so they just tested it in place without driving around... tested its ability to find targets, to fire on targets and to communicate with other vehicles... detect targets and threats and add them to its mission combat system and pass that information to other vehicles in its own unit, vehicles in nearby units and up the chain of command to HQ to give an up to date real time situation map of the ground around it.
When it went back to Russia the first thing they would have fixed was the transmission... but you are saying it was a failure and needs to be scrapped?
The gearing in the arrester gear on the kuznetsov is supposed to hold the cable in place... when a plane lands it catches one of four cables and pulls on them. When the arrester gear is not working properly it either lets go too easy or tries to stop the aircraft too quickly and the cable either snaps or the aircraft breaks. If it lets go too easy the plane does not slow down and ends up running off the deck into the water or trying to get back into the air again.
Working correctly the arrester gear feeds out the cable to reduce the strain on the cable and the aircraft absorbing the energy of the landing and spreading it out over a few metres to bring it to a stop... sort of like the opposite of a crossbow string firing a crossbow bolt... imagine a crossbow bolt being fired at a crossbow... backwards... because the bolt is small and light the string can absorb the energy.... make the string a heavy metal cable and it is stronger but still not strong enough to stop a 20 plus ton aircraft at 150km/h plus to bring it to a stop in 30-40 metres... so the arch of the crossbow that absorbs the energy is the gearing of the arrester gear that absorbs the energy so the string doesn't have to take it all itself.
The deployment of the Kuznetsov wasn't about sending a few extra planes to a foreign country to kill some people who need to be killed... it was about testing sailing away from the Russian coast and performing operations planned and commanded from the Carrier, which is what they did... they did it in Syria but the same missions could be completed anywhere on the planet... which makes the Kuznetsov rather unique and useful for some very specific missions.
You can bet your ass the arrester gear is fixed already.... but if it isn't and it does not get fixed then you are right... the exercise would then be a failure.