Apparently, they believe that Google didn't provide straight answers to the questions. More of these hearings are to be expected.
"We call for a pause in the interests of ensuring that there can be no misunderstanding about Google’s commitments to information rights of their users and EU citizens, until we have completed our analysis," the letter asks.
That may sound like a reasonable request, Google is a large company, its privacy policies are large documents, so maybe the group really needs time.
However, privacy regulators were briefed of the changes weeks in advance of Google's announcement. They had ample time to raise concerns. They had none, Google says.
As such, Google won't back down now, after it has already launched the biggest awareness campaign in history. No doubt you have seen the notifications in Google Search, YouTube, Gmail and so on, on desktop and mobiles.
It is interesting how only now, after the matter has become very public that regulators decided to investigate it. It would be their duty to have done so when Google first notified them. By their own admittance, they haven't or they haven't done a very good job at it.