Look if they can do GotG, a property that even many comic book fans have never heard of, they can find a way to introduce BP. He's a legit hero, with an interesting backstory, and deserves a place in the MCU. There are several options for a successful adaptation and I hope plans are already in the early stages to make it happen. A small introductory part in TA2 or another Phase 2 film is completely doable. Hope it happens.