I generally agree, but I also think that the SALT deductions were to generous in general. Mortgage interest deductions probably shouldn't be brought back, just like they got rid of other interest deductions in the 1980's. Before the TCJA, people were even allowed to deduct mortgage interest on second homes.
On the state income and property taxes, it always seems a bit weird to be paying federal taxes on income that already went to pay state taxes. I'd be more in favor of repealing the whole JTCA, and then starting over with real changes. One of the things the JTCA got rid of with lower rates, was deductions for R&D. That was stupid then, and the Dems changes seems to be keeping it the same, but with higher tax rates for corporations. If Team Biden really wants to compete with China and other parts of Asia, then we are going to have to engage the R&D game more, rather then blaming foreigners for our problems.