Publisher - I wasn’t the one who wrote TAs would be needed more. I was responding to your reply that they will be needed less because lectures will be recorded.
You assume TAs are in lecture- some are, many aren’t. If they are expected to be in lecture or participating in lectures, that likely won’t change with remote instruction. But, whatever their assignment, in R1 universities TAs play a critical role in teaching undergraduates.
Maintaining the same quality of instruction while shutting down in-person instruction to slow the spread of Coronavirus is going to be very difficult. It’s going to be especially hard for classes that have an associated lab and TAs run a lot of those labs. It’s a rough situation for everyone, and I’m sure university staffs are struggling to figure things out.