We’re not talking apples to apples. Scrum foisted on a team, grafted over a project culture, focused only on the team level, and linked to shallow visions of awesome is VERY DIFFERENT from a team opting into continuous improvement to deliver more value to customers, making safety a prerequisite, and being given the bandwidth to do the hard work required for continuous improvement. And coincidently, agreeing to experiment with Scrum and XP practices. Very, very different.
By asking SMEs to use a self-design approach to making design decisions, we’re likely setting them up for failure. If the team is gathering any other research, that research will likely be at odds with the SMEs’ suggestions. That conflict creates tension and frustration within the team.