I agree this would have somehow been a good idea…But after 7 movies with the same opening protocol, it would be weird to change it now.
Not change, just slightly adapt it to the current story’s mood, which I guess will be darker than the last one. Personally, I have a little trouble accepting the prospect of Williams’ victorious SW theme for ‘The Last Jedi’s’ opening crawl. But again, it’s just me and I’ll watch it anyway, hopefully in IMAX.