The Traditional bo3 draft event can feel very long to play. Experienced drafters with above average winrates play up to 6 bo3s and hence up to 18 games with the same deck. I also like watching streamers play limited, and I've seen streamers drop out of the event after a 3-0 so they can start a new draft and hence have a larger variety of decks.
How was the maximum number of matches in the bo3 event originally determined, and do you think this number is still optimal? Have you ever considered changing it? (Note I'm not asking about adjusting the rewards; one could conceive of a bo3 event with a maximum number of 3-5 bo3 matches, while holding the expected cost and rewards the same.)
We're talking actively about this (as in, Lee Sharpe and I were talking about it just a couple days ago). Nothing new to announce here yet, but it's definitely on our radar.
Edit to add: Please let us know what "feels right" to you here