The controls of QE/JK worked fine, but weren't the most intuitive for my brain to translate to take/give scale, and up/down.
Yea, that was the only (non-scraped) level that really required any technical skill, and it suffered non-trivially from underbacked physics, so points off to me for that as well. As a day or two have passed, its easily the worst of the main levels. It's been suggested elsewhere to map scaling up/down to the scroll wheel and just attach the axis lock to Q/E, and I do like the idea.
Great examples of this (and great puzzle games) include Baba is You, Bonfire Peaks, Pipe Push Paradise, and A Monster's Expedition (I recommend all these games, especially Baba is You). I find this feature empowers puzzle designers to create much harder puzzles without alienating a more casual audience. I for one love super hard puzzles, but I like to be able to bounce around between different ones while I process the challenging ones.
I love Baba is You! and I agree, another game that does this really well is The Witness, which was a major inspiration for the passive tutorials. The others are on my to-play list now!
Thank you so very much for taking the time to give this feedback!