(Also, I can definitely confirm that you are not the only person to have tried to microwave cream cheese in that packet. When I did it, I thought, But it's not like 'aluminum foil' aluminum foil? I literally thought that even though it kind of looked like aluminum foil, it was somehow not quite, and I was so wrong.)
I'm glad they came out good!
(Also, I can definitely confirm that you are not the only person to have tried to microwave cream cheese in that packet.