I definitely share your concern; for me, Rust was like putting on a glove perfectly shaped for my hand. It works and prevents every basic pattern that it took 10 years to learn and start applying to all my code thereafter. If I had Rust all those years ago, it would have saved me a ton of time... but I probably would have turned my nose up at it, b/c I wouldn't have had the experience to understand what it was saving me from.
So yes, I want the learning curve to be lower, but not at the expense of losing all of the safety it brings to developing fast and reliable software.
That's an example of just two blocks, but if it's deeper structures then ignoring this until the end could cause you to go back and restructure significant sections of code to make it abide by the mutability rules.
The process I use to stay productive, is to write small blocks of code, write a unit test for it, compile, and then move on. That way I don't build up a ton of compiler debt...