I wouldn’t want to start my vacation stressing out about timing and missing an ADR. What if there’s weather event or something and your flight gets delayed another hour or so? You have to decide how important it is to you to try for that B&C experience, but to me it wouldn’t be worth the stress.
I vote for reimagining your first afternoon - instead of having a really charming environment but just ok food and ice cream, grab lunch on the boardwalk (you can get pizza, hot dogs, hamburgers, pulled pork, margaritas… ) and eat at an outdoor table, maybe near the pizza window. Per Dad’s Guide to WDW:
There are a couple of places where the only dining available is outdoors. One of them qualifies for one of the most scenic and interesting places in all of Disney World to eat outdoors. That’s the Pizza window on the Boardwalk. It’s a great place to sit and watch people in a mind blowing environment. You sit on the shore of Crescent Lake, with the Swan and Dolphin and the Yacht Club and Beach Club in the background.
Then you can get some really good ice cream at Ample Hills.
That’s my two cents! If you decide to try for B&C, I wish you lots of luck and some pixie dust!