Yes, I've managed to import the old posts from my blog! It was pretty easy to do, complicated only by the fact that I initially accidentally pulled the data from a different, older WordPress blog that I deleted some years ago but apparently still had the MySQL databases for.
At any rate, all my posts are now once again accessible, and any old links to them should still work. Comments have not yet been imported, but that's the next step. For now everything should be working as expected, but please let me know if you encounter any errors or problems.