Well, no, they've made no comparable claim.
From skimming the material, not only does Google not refer to Python as "modern" but provide the caveat
> For Google's Python Class, it's best to use Python 2.7. Although Python 3.x is becoming more popular, this course is designed for Python 2.6 or later.
I suppose to some folks they should provide a disclaimer with road flares warning of Danger Ahead, but it's not as if they're intentionally misleading.
"Becoming more popular" should instead be "will be the only supported version of Python from 2020 onwards".
Unless the reader is aware of the state of Python 2 vs. 3, he/she wouldn't even bat an eye.
If I were looking at learning Python and read that line I'd stop and dig a little deeper.
I hate on Google as much as the next neo-Luddite, but they're putting out quality material on a topic that some folks will need. Y'all are pretty damn hateful.
In a nutshell, it's not about Python 2 being old, it's about calling Python 2 "Python" when that hasn't been the case for a few years now at the least.