Ultimately, where is the difference between an online certification and any other version that does not require personal attendance?
My very first personal trainer certification with ISSA in 1995 comprised of studying a manual and then writing a paper based on a set of question. And a few weeks later – voil├á – I was a certified personal trainer. I had studied well but still refered to the manual when answering.
I like to think that I turned out well 🙂 I took my initial certification as an incentive to keep on learning.
I have no reason to believe that an online group exercise certification cannot result in a great instructor. Even more so because, particularly in group exercise, there are many skills necessary that cannot be taught but can only be acquired over time.