All of these are exactly why you would hire a good lawyer as a company and not just one that's going to use boilerplate simply because it's easy. The excuse that doing the right thing is hard has become far too worn out to be acceptable any longer. There's a difference between building a minimum viable product and a company as well known as grammarly. They are obviously at the point where boilerplate isn't going to cut it anymore and they should define the reasonable steps that they are taking to clear data from their systems.