While I could get onboard with functional languages being more user friendly I didn't find the motivation to be compelling.
> Ambiguous functions argument positions
It just seems to be advocating for named arguments, something which the majority of languages (OO or FP) support these days. You could say that requiring named parameters is a feature but it's hard to get excited about.
> Not Intellisense friendly
I use Elm and Elixir, both of which have decent autocomplete in vscode (and I believe many other editors).
Critique aside I definitely applaud more towards increasing FP adoption. I think Elm has brought many good ideas to the table already (though admittedly it's bias is more towards ideal than practical). On the flip side Elixir is very pragmatic and easy to get going with for developers coming from OO languages.