Yes, for reasons like in this post
If Bubble can not publicly display all of the charges we will incur and the actions that will cause those charges to be incurred, and if Bubble is unable to properly label all the charges, and if Bubble is unable to provide logical explanations with math that adds up properly for the charges, then Bubble is in trouble as most people who are not already locked in, will just open the door and leave as soon as they encounter these types of things.
I wouldn’t think the pricing is unsustainable if Bubble had not procrastinated for 18 months doing nothing for WUs and then after forcing the switch, had actually addressed the issues raised…but that is not happening.