And Patrick Stewart hasn't been relevant since 1994 when TNG went off the air. And no, I'm not being mean/felicitous here. hen tried to parley his fame into being a bigger feature film star (The films he headlined didn't do big box office) And hell, his last series he headlined "Blunt Talk" was cancelled after the second season (due to ratings) - so yes, sorry, outside of Star Trek and maybe hardcore X-Men fans (although nobody liked X3 - and X-Men: Days of Future past was practically a cameo role for both Stewart and Ian McKellen

).
the fact is - Worldwide Michelle Yoeh is a bigger and more recognized name than Patrick Stewart (and ST: D is worldwide via Netflix, and I'm sure this Picard series will be the same.)