FWIW, I’d recommend the Rogue One style opening. ALTAIAGFFA card, then cut to an opening shot. I don’t imagine backstory or exposition via text would be any more useful for a movie adaptation than it was(n’t) for the original show.
This is the thinking I had too, you just summed it up much more succinctly. Even with the way it’s edited currently, I don’t think a crawl actually adds anything that can’t be picked up almost immediately through context as the story unfolds. It’s actually more engrossing that way.
(FWIW I don’t know that the most recent cut that makes the crawl “necessary” is itself, necessary. I think the previous version of the edit with all that stuff intact worked better)
Also, on a technical level: The title treatment with the Mandalorian logo as the meat in the Star Wars sandwich looks very off, and the font/text of the crawl itself isn’t right