Generally speaking...
Back in your day, there were 10 times as many corps, and each one of them had to work at recruiting to fill their ranks. In that environment, if you made it through this season without getting thrown out of the corps, you would be welcome back next season.
Several things have changed since then. Besides there being so few corps, it is also far more predictable where they will place in the competitive hierarchy next year. Combine that with the greater ease of mobility developed over the decades, and you now see most world-class corps auditioning people from all over, attracting more applicants than they can accept, and having to make cuts. Under those circumstances, vets might not have the luxury of even skipping auditions, much less dropping in months later expecting a spot.