So they they are saying either there is something they do not understand, or God does sloppy work.
I pick the former.
Of course Einstein was wrong ~ God does play dice with the universe, particularly when He throws them where He can't see them.
But, we digress. They've found something they think they might could understand someday so they've proposed a theory ~ yet another neutrino. Maybe it's a buttino, and it's hot, and cold, at the same time!
There are plenty of asymmetries in Physics: for instance - there’s an asymmetry that causes there to be more matter than antimatter.
Asymmetries are not signs of sloppy work: they’re merely what they are: asymmetries .
Your house, your body, your dog, your planet, the night sky - all of these are either subtly or obviously asymmetric, and yet all of them are good. The subatomic world is equally asymmetric - and it works beautifully.
God is an perfectionist, and makes all things better than we can know.