Longer queries give better opportunities for error correction, like searching for synonyms and misspellings, or applying the right context clues.
In this specific example, “is Angelina Jolie in Heat” gives better results than “Angelina Jolie heat,” because the words that make it a complete sentence question are also the words that give confirmation that the searcher is talking about the movie.
Especially with negative results, like when you ask a question where the answer is no, sometimes the semantic links in the kndex can get the search engine to make suggestions of a specific mistaken assumption you’ve made.
I don’t really mind when a cloud-connected device gracefully falls back to an offline-only device. It seems like it retains all of the non-cloud functionality: reading and setting temps, including on a schedule.
It’d be nicer if they gave the option to let people run their own servers for the the networked functionality, but it doesn’t seem like they’ve reduced or otherwise held back on the offline functionality one would expect from a thermostat.