I think you make a good point about the batter having seven seconds after hitting the deck. Perhaps they could tweak this by having the home plate ump signnal the clock to stop and to start when the hitter gathers themselves.
Or it’ll be one of those unwritten rules where the catcher holds the ball a little longer, maybe hands it to the ump to look at, to give the batter a few extra seconds before tossing it back to the pitcher to start the clock.
This isn’t any different than the pace of the game was several decades ago. I don’t know how or why all the slow-playing became the norm, but it didn’t enhance the game at all. I think the players will adjust. And it might even be a small plus for the Orioles during that adjustment since they have so many guys who were in the minors recently.