F# is a big language so I think it is to be expected that beginners will not know these things. I don't think the fix is to simplify F# we should just understand that F# is not for everyone and that is ok.

This is perfectly fine, but I think it's better to be unsure about specific language feature than confidently state something that is not correct (anymore).

Personally, I'm just annoyed by never-ending cycle of ".NET is bad because {reason x}", "When was this the case?", "10 years ago", "So?".

Like in the example above, chances are you just won't see new F# code do this.

It will just use task { ... } normally.