Comment by twodave

I think if you spend a few minutes reading about the origin of this change, it's pretty obvious this was a sacrificial lamb for the TCJA to pass. It gave them ~5 years of noticeable extra tax revenue they could use to balance the other provisions. So today, 8 years later, it's not doing anyone any good (and removing it, unless done carefully, might essentially reverse that 5 years of extra revenue, but all in a single year).