The Red Trail frenzy charge generation

The red trail does not give 3 frenzy charges with attacks using multistrike whilst bleeding.
It also does not give 2 frenzy charges when using Frenzy(skill) and bleeding

Is this intended?

Necro bump. I really wish this worked, same with AC now.

you can only gain one charge per cast, regardless of how many things are hit. aka even with frenzy and GMP, you'll only get one charge.

when using multistrike, you hit three times, but its only one cast - one use. one use = one charge.
as for using frenzy in order to try to get double frenzy charge proc, that also doesn't work, because you're just strictly limited to gaining a frenzy on hit, which you do with frenzy anyway.

you'll never gain more than one charge per availability.