It's possibly not widely appreciated that plywood itself was a new technology back then - there was a three-way race between British, German, and Scandinavian producers to get it right. You could even see the Mossie as the first aircraft to be built with composite materials - the combination of the different woods and the Aerolite glue, really a thermosetting plastic, especially when you remember that some of them were thermoset using RF energy like a big microwave oven.
Not a throwback to biplanes as everyone assumed (to be fair the British government's wartime propaganda helped push that idea) but a throwforward to the era of composite-built multi-role fighter/strike aircraft, especially as it was such an important electronic warfare platform.