What else do you want from that email? You got a new subscriber. There's their name. Why change the layout just for the sake of change? Surely there are people having rules or automations tied to them, why brake them? Just for funsies?
Why change for the sake of change? Because marketing analytics says they need to be the face of new-new. Why risk breaking automation? Because that's a you-problem. Google does not care about you, the user. They want you, the ad target. Things break all the time for meaningless changes