I think you are under estimating the problem with Commercial real estate, along with rental around the city that has on adjacent Commercial real estate pricing. Which also has a knock on effect on other financial instruments.
The situation wont change or pops the Commercial real estate value to where it was. But it should hopefully buy some time for the market to solve itself. And this isn't just JPM literally eery bank and finance sector are forcing other sector ( other than tech ) to end Remote work.