I strongly disagree. We use a strongly typed Lua-like language at my company and it has everything you need to build decent applications, but we hit so many bugs. It took me 12 hours over 5 days to make a simple modification to the business logic (half of that was figuring out and fixing bugs). It took me 4 hours to write something far more complex in Rust with virtually zero bugs; I attribute this almost entirely to sum types (Rust enums), a better type system, an unforgiving compiler, async/await, a better module system, lifetime checking, and an ecosystem of easy-to-grok libraries.

These things just make bugs disappear.

When it comes to IDE experience, the parts that I use often are mostly the same between Rust and our language.

Edit: I'd say it's both, in a multiplicative manner. You need experience and a good set of tools (the language itself being the most important tool) to write good code fast.