I’m not too surprised by this. The function of every form, wizard, walk-thru, or guided app is to end up with a blob of data to post to the backend. While the b

I’m not too surprised by this. The function of every form, wizard, walk-thru, or guided app is to end up with a blob of data to post to the backend. While the blob could be relatively simple, e.g. iCal for recurring event, the UI can be extremely complicated because every valid combination must be achievable but all invalid combinations must be blocked. Google Flights UI is better than United at coming up with the right data blob to post. Once the blob is created, United final page and backend have no problem parsing and posting it.