Less sympathetic than I was hoping for but copacetic. Could they have nipped this in the bud with a faster response? Perhaps. However having dealt with reports like this, I cannot recall a decent interaction with a reporter.
(For the lazy like me, who still want to learn new and useful words.)
I personally prefer Right click “Search with Google…” in Chrome: it has the upside of coming up with a definition when the word is actually rare -- so it prevents me from defining an word I didn't know simply because I’m not a native English speaker.
The few programs I use that don't support it actually drive me nuts because I've become so used to it.
The system language thing is a little annoying. It would be fantastic to be able to look up the random Spanish or Japanese word, but I understand the limitation.