I don't like how the grand parent mystifies this. This problem is just normal engineering. Any good engineer could learn how to do it.
One of my colleagues was only 25, really smart in his field and became a professor less than 10 years later. But he was incredibly naive in everyday chores. Buying groceries or filing taxes resulted in major screw-ups regularly
The real answer is likely internal company politics and priorities. Google certainly has people with the technical skills to solve it but do they care and if they care can they allocate those skilled people to the task?
It’s quite intimidating how fast they can break down difficult concepts into first principles. I’ve witnessed this first hand and it’s beyond intimidating. Makes you wondering what you’re doing at this company… That being said, the caliber of folks I’m talking about is quite rare, like top 10% of top 1% teams at Google.
The Dunning-Kruger effect also applies to smart people. You don't stop when you are estimating your ability correctly. As you learn more, you gain more awareness of your ignorance and continue being conservative with your self estimates.