You are correct in the sense that there is no pretty PDF available with the GMAT online version of the test. (I would say however that the pretty version of the PDF that shows up for the test center-based test, is only available after your AWA is graded so that would take at least a week and likely 10 days). So If you were planning to retake the test, it would not have helped you.
But there is good news😊 you can take the screenshot of your mba.com account which will show the score. All of the places and institutions that have previously requested an unofficial copy of the test score, have accepted screenshotsof the mba.com account.
So you can just do that.
Posted from my mobile device