Wow - what a story that was unbelievable. I am glad although traveling without your carefully planned luggage you had an enjoyable trip. Super weather it seems and the penguins are so amazing. Everyone in the same situation would have helped and fortunately Ushuaia has good stores to purchase the items you needed.
We have lost my luggage so many times that we deal with it quite well. Once in the Arctic our luggage was lost and similar situation where you needed specialized clothing. I bought enough in Longyearbyen that I did not want my luggage to show up. But there it was just as we were pulling up the gangplank our luggage made the ship.
Our trip is now so very close I am starting to gather my "stuff" in participation of getting my luggage!