No. There's too many parties involved I'd have to trust to a) want to keep my data save and b) don't mess up. And even if both are true, I have to accept yet another way with several points of failure where bad agent could exfiltrate my data.
It's capturing the things you are typing into the website's input boxes!
Sorry, call me paranoiac, but i will never trust the javascript of a website. With no webdev experience, i was able to inject js (almost by mistake) three years ago. Moreover, is the js communicating with the backend using https too? How can i check that? Are those js library on the website server, or are they hosted by a third party? I can trust them, but how do i know that no attacker was able to modify those scripts? Yes, those risks are small, but i'd rather have ublock making those risks closer tho 0 than not, am i wrong?