YES clear.right, perhaps leaving CX/KA might just be a VERY good idea. Don't be foolish enough to mistake Oasis and HKA/Hainan group as being one in the same.
Admittedly the current HKA mismanagement will need to change dramatically to ensure the long-term survival of the airline however they have MUCH deeper pockets than Oasis ever had.
Cathay since inception have either simply bought-out new entrants (i.e. the very first Hong Kong Airways and Air Hong Kong and Dragonair) or smothered the opposition by flooding routes with extra capacity until that opposition dies (Oasis). They are trying it on already with extra Moscow services trying to kill HKA.
However HKA is a very different beast. Once they rid themselves of foolish Singaporean flt ops management and perhaps improve the package financially they will be flooded with applications from disgruntled CX and KA guys, particularly FO's or anybody wanting to go onto a base. KA is now a career deadwater; a small thorn in CX's side that will wither on the vine in time. CX have stopped KA flying to Tokyo and Bangkok and closed the entire freight operation. With that slow death of KA will go the careers of many pilots. Why not leave now and catch the wave with the likes of HKA or Emirates?
CX seem to have bogged-down since the mid 1990's. They are defensive and not offensive. They are no longer innovative and myopic when it comes to expansion. A350's/787's order? Big Deal -they are just A330 replacements. Where are the A380's. Where are the services to Honolulu, Seattle, South America, secondary Euro destinations etc. Where are the business-jet feeder services for high net worth First Class pax? Where are the limo city pick-ups and in flight bars? Why are the interiors of the aircraft so tatty and the Flight Attendants so indifferent? The check-in staff in HK are just awful, rude and a very poor public face of the company.
So unless CX does something really dramatic it too will wither and die. It needs to re-invent itself quickly. The 'security' of career at CX if that is what you wish for is perhaps a smokescreen. And what about job enjoyment, workplace happiness and the feeling of being appreciated by management? Hardly highlights any longer of a career at CX.
HKA will not go away or be subverted. It's a different game this time and CX don't get it. For pilots HKA offers DEC and very rapid command for F/O's. They also offer bases in a number of European/Australian and American cities or even HK should you wish!
They are not perfect by any means and improvements must be made but yes, leaving KA or CX may just not be such a weird idea.