@joeo10 I think I was unclear in my post, again. Seriously need to caffeinate properly before writing. ?☕ ?
I totally agree with you. It's a major pain to get anything exported from Tumblr, and my workaround was so headache inducing that it led me to some semi-suspect web service that produced a "standard" Wordpress backup blob.
Which was fortunate, as @matigo was able to successfully import it into 10C. At least that I know of.