I don't mind the unbundling so much. I mostly know about that, especially given I'm mostly on a single carrier. What's more annoying is clicking on a roundtrip fare from $1K or whatever and when I get to the return leg (on the date I had already chosen) and there's no $1K roundtip fare to be seen.

I just spent probably 8 hours finding a pair of flights somewhat flexibly around Christmas (yes I know but was having trouble firming up plans) and I'm still not sure what final combination/incantation got me to a fare and schedule that was at least within a large ballpark of tolerable if not exactly reasonable.