This is freaking amazing. The amount of spoofers in my area are so large that it's too hard to take them down. So glad Niantic is taking drastic measures, making the game fair for everyone, and eliminating all the cheaters.
i will follow you way down wherever you may go
i'll follow you way down to your deepest low
i'll always be around wherever life takes you
It's a step. Anyone who knows how to root may very well be able to disable the check.
At the very least, it keeps the opportunists from cheating.
I have been blocked from Pokémon GO since last September because they blocked rooted phones. I have yet to find a way to get around this regular rootcloak doesn't work and it does detect Xposed modules which I need for my phone to function so I can't remove those.
@Niantic: Now that you've blocked GPS spoofing... Unblock rooted devices please? :'(