Dancing to someone else's tune
It's great that someone offers a free product with useful functionality.
It's less great when that someone is an Internet behemoth that changes its mind on a whim. Disruptive is meant to improve the user experience, not destroy it.
Killing Drive and then ressurecting it to kill its successors demonstrates that nobody thought the whole thing through in the first place.
Google should test its products internally more thoroughly before offering them to the public, and then throwing everything away. Again.