Currently a student, and I completely agree. The strain is both ways, too. Since timezones are now a very fluid concept, you're seeing courses accommodating completely new challenges in TA-ship. Some TAs have relocated entirely, which means that the course staff can be much smaller than anticipated.

For some students, they can only receive advice asynchronously and it makes it difficult to meet deadlines based on EDT timezones. Even video debugging/office hours for people in EDT is awful, despite advances in screen sharing/Zoom.

Also, I helped transition a professor to virtual instruction. They had never installed the Internet in their house before. They own no smartphone. They communicate entirely through landline and a dated desktop PC in their office. When absolutely necessary (course admin, journal paper updates) they will use Pine for email. This prof taught a 30-person graduate course in neurobiology having never touched any of the technologies they had to use. Bless that class.