There are currently so many open issues in the AL GitHub repository: https://github.com/microsoft/AL/issues
Currently there are 459. It is frustrating that so many developers take the time to repo these issues to GitHub, but so many are not resolved and remain open for so long. My suggestion is to fix them before creating any new feature, so that we developers have a fully functional development environment again.
In my experience, C/AL development certainly had its flaws, but it wasn't as memory and CPU hungry, and the compiler didn't have as many problems as the AL compiler.