That’s normal for some table service restaurants to have regular ADR times a little past park closing on a party night. As long as you didn’t book it through the MVCMP dining page (which upon further review you can’t anyway since Skipper isn’t open for
MVMCP) and it was in fact the normal restaurant page as you note, you’re all good.
We are going on my bday to Skipper Canteen, I booked a Jungle Cruise FP right before it for full immersion...never been there so we are excited to try it!
They will in all likelihood escort you to the front of the park after your meal since you’ll be done well into party time at that point.
Have fun! Love Skipper Canteen!