At first, I was super annoyed (this is a common reaction I have to Sylvie's control schemes partway through playing). Then I thought about how the control scheme being so fundamentally different meant that although the game would probably be more frustrating than necessary for everyone it would be more more frustrating for me as someone who has a lot of experience with platforming games than someone who is new platformers or this kind of game (or games) in general, and I think it's kind of cool that the control scheme
gives people a more level playing field so that, although everyone of course still has a different perspective on the game, the thing that we are having a different perspective on is much more similar. This makes it more fun to share and talk about with my friends, who are not as good at platformers as I am, at least for me, because it makes it easier to understand their experience (for contrast, I really enjoyed the boss fight in The Witness, but I made it to the second phase on my first time playing it, which made the shift in the music dramatize perfectly with the gameplay at that point, but when I got friends to play it, only 1 ever made it that far and it took him like hours to get to phase 2 even once and at that point he was like 'yeah I give up' because retrying that many times when progress on the next part seems literally impossible isn't fun, whereas getting stuck until I realized my assumptions were again the problem was fun for me, because retrying took however long the first half of In the Halls of the Mountain King is. So we couldn't really talk about it in the same way). Lastly, I feel like Sylvie games are bringing together a pretty eclectic community-- a lot of the comments I read from people who are fans seem to be from people who love story games and don't really like platformers that much. So I think it's a particularly useful thing for this audience.
Anyways, the controls are usually initially normal, quickly become frustrating with the first few power-ups, and then you just gotta practice and get used to them (or don't and find a secret way around the platforming). In not only this game, but also Sylvie Lime and Funeral Song for the Elemental Lords, although the latter in retrospect wasn't nearly as frustrating as most of them (it was mostly just the swordfighting controls)