I would like to say that the fact there are no downloads/transcripts available does make complete sense.
For a course that is fully online I’m sure its a concern that the entire course could be downloadable and passed onto another potential learner free of charge.
I think it’s still more beneficial to have the videos rather than an in person lecture and be able to stop/start the speaker. You would miss so much if you just downloaded the slides as there’s much more information being added by the speaker.
As someone working full time whilst also doing this course, it is a big commitment but there’s really no point waiting for the slides/transcripts as you don’t know when they’ll be available. You might as well have a slow start than no start at all!