Hello all:
I'll preface this by saying that I'm disabled with a chronic pain condition, and I've been involved in disability activism for years. I've known several VI activists, but fallen out of touch so I'm turning to Reddit for this question.

I'm currently working for an online learning course that is very concerned with screen reader accessibility. For context, these are business courses and a lot of them are walkthroughs of how to use programs or mathematical equations etc. The videos for these courses are hosted on Coursera, with the clickable transcript below on the same page.

The accessibility solution the program has come up with is to provide downloadable HTML documents and epubs of the courses (with screenshots, description of screenshots, and transcript) as their universal design option.

I'm inherently skeptical of having a separate "accessible" option, but they seem to be focused on VI/blind users, so I thought I'd ask. If you had the choice of a Coursera website, a downloadable HTML transcript, an epub, or a word document with proper markup, which would you choose? Or is there something else you'd want?

Thanks for your thought and experience. I know from my own life how hard won it is.