While I think it's likely that having a stricter language is more likely to produce better software, especially as complexity grows, I don't think it has a huge impact on whether the language is "easy to learn" for me. Python is very lax (contrary to popular belief, Perl with strict/warnings is stricter than Python, and protects you against a wide variety of scope-related bugs, in particular) but I consider it an easy language, too, because it is consistent and small(ish). There's some kind of balance to be struck between elegance and simplicity, and between explicitness and concision, and Rust feels very good, so far. I don't think that balance will be the same for everyone.
JavaScript, to me, is hard just because it's so damned big and incoherent. It's been pulled in twelve directions at once for its entire life, and it shows. JavaScript is like a buffet that has Chinese food, Indian food, pizza, sushi, and tacos. Most of the food isn't very good, but there's a lot to choose from. It doesn't help that learning JavaScript also entails trying to make sense of the maelstrom of tooling that's available. While Rust has one clear path for beginners, JavaScript has a haunted corn maze.