Beshalach - My Creations Are Drowning and You Want to Sing?

I read a great DT from Rav Asher Weiss over Shabboss. The angels asked G-d if they could end a song after he saved the Jews from the Egyptians and G-d responded, "My creations are drowning in the sea and you'll be singing!?" The thing that you have to wonder about is that the Jews did sing. Rabbi Weiss points out that the Jews didn't ask. There are a lot of ways you can go with that. I think it's a wise observation, my favorite kind of brilliant answer- there in plain sight all along.