I have talked with him about the same idea, removing both upvote and downvote.
https://steemit.com/sct/@jack8831/2e3fqa-2019-11-27#@clayop/q1mxdi
The core question of them, if I understand correctly, is removing downvote being the status quo. So your answer "yes" is considered as "no decision". See my answer with the same goal of yours.
Cool I can't consent to removing downvote on its own but rather replacing it with a different mechanism as we both have discussed above. So as the question stands the answer is no but would be a Yes if there was a substitute mechanism as mentioned above.