(Also, apparently he can't work for a month or two -time to recover-, but still no need to recall Parliament: The guy who doesn't know where any countries are and the woman who can't even read numbers will take care of everything.)
Not a lot of examples of people needing the ICU being dismissed so fast, &being able to stand and to speak quite well right afterwards. Mostly counter-examples.
Possible explanations:
1/ The PM wasn't that sick. It was just a precaution as he's PM. (1/2)
In any cases -more than 1 study show the virus can sometimes reactivate after a while, and sometimes make people with mild syndromes really sick.
Unless there's a private ICU at Checkers "maybe" not the safest solution.
For himself and everyone he's in contact with
You wouldn't want a fully unaccountable government as the guy who doesn't know where any countries are and the woman you can't read numbers ain't in charge as they need PM green light &PM ain't in charge either as he's not fully recovered.