The general sentiment is that it's unconscionable to remove previously free features and put them behind a paywall, and I have to agree.
It would be one thing if they announced fancy and fantastic NEW features and included them in the Pro suite, but to disallow activities of current (and loyal!) users, and then charge more than I imagine most users are paying for ANYTHING phone related, apart from them monthly bill, is a such a poor move on their part.
Look for them to make a statement, possibly an apology, in the next few hours.