You can bet that Allianz are not laughing right now.
Why do you think Allianz is referred to as "lead insurer" ?
That's because aviation insurance involves spreading the risk across a consortium of different insurance companies, that's what Lloyd's does, it provides a market for the insurers to do deals between themselves and package out risk obligations.
Whilst Allianz refuse to comment, when the numbers do emerge you'll probably find their own direct exposure to the two MH instances and this event is only a fraction of the total sums insured !
Lloyd's has been around for 300 years. So whilst insurers are in the business of taking on risk, they're not stupid, they know how to minimise their own risk too !