OP what are your circumstances?
It is simple and reasonably cost effective to fly with your bike.
If several of you going then 3 people is the point at which it is better to drive.
As mentioned above, who do you know in Morzine that cares enough about you to ensure they take delivery and store the bike in a safe place.
Unless you have a set of circumstances where flying or driving simply don’t work then this is an expensive, other people dependent answer to a non existent problem.
Don’t worry too much about the flying bit.
32kg weight limit is ok, I normally get all my gear in the bike bag and a cabin bag.
Pack it well, it’ll be ok.
Go ride, be happy.
When are you going? I am driving down and for a ton could ferry it for you, that’d keep me in Mutzig for a couple of days. ;-D