This is not a joke or an insignificant issue
Imagine ... A country doesn't like an app, the government threatens google, google revokes the developers signing keys ... And now the app can't be installed on any android device in the entire world.
This isn't a conspiracy theory, it's a very real , very close threat.
DO NOT SIGN UP if this gets implemented, fight the urge to submit for the sake of publishing one app.
Read the letter for more details.