Such a serious and "normal" president, huh?
You know, if you can't think of any way to spin a story to make Biden look bad or Trump look good, you can just say nothing? When you don't even have straws to grasp at, trying to grasp looks a lot worse than saying nothing
I'm not trying to make Trump look good. Biden campaigned explicitly as a restorative president who was going to be a change from Trump's many indiscretions. That he allows his comms staff to indulge in this kind of juvenile, snarky Twitter discourse is quite unserious. Why can't he just be a normal president like he promised?
Even if that's your argument, there is still at least an order of magnitude difference in amount. Trump was spewing things this stupid or stupider from his Twitter account on a daily basis. The vast majority of Biden's Twitter is standard politician Tweets.