There is neither luck in the part of AMD design and incompetence in the Intel design team, one chose to be more secure, the other chose to cut corners to gain more performance, but as you eloquently put it. The chickens are coming home to roost.
are you being serious?
no that not it.
Its because more people business, servers, happen to use intel processors, that more people have access to them in hacking them to find exploits.
Its that simple.
Remember the days when apple said they would pay someone 1 million dollars to hack a apple?
Again no one did it because the OS apple used was considered a minority and not worth hacking.
Now flash forward a couple of years and increase apple's success exponentially, do you still think Apples are unhackable as they proclaim they are or even will offer that 1 million dollar reward?
Please dont pass FUD.
AMD's RnD team had less then 1/10 of the funding intel had.
Intel's biggest mistake like anyone in tech was they thought they were smarter then the younger generation and didn't think completely out of the box, and not because they were cutting corners.
The reason why AMD's are bullet proof is not because they are better designed, but because there is just not enough of them in working circulation for exploits to be tripped.
Give AMD some time, let them saturate the market like Apple if they ever can, and lets see if they are still as bulletproof as you state there are.