Your question is Defending a Complex Model Choice. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you chose a more complex model architecture over a simpler baseline and had to justify that decision to skeptical stakeholders. Walk me through how you evaluated the trade-offs, how you explained the choice, and what happened after deployment.