Same for me. I had applied a few years ago and that profile info was still there.
If I click on "check app status" it shows 2 apps, the date from a few years ago and the current one.
This time I went to the website and clicked on "apply"
it started from page one of the profile stuff and had my old info filled in.
Then I also got the email a day later that said "go to this link to finish the app"
then it went to the pilot times section.

I have several ex AQ friends that got hired. They all interviewed more than once. After the first time, they only got called back for phase two. Seems like they do it to see if you are still interested.