Disappointed with Impale Mastery

It feels more like a 'Call of Steel Mastery'.
Not sure why two of those five options are tied to a specific skill, that's not what an IMPALE Mastery should be about.

It should improve the Impale ability as a whole, not just a certain skill.

Most of the other options feel quite underwhelming as well.
Reducing Dread Banner's reservation from 10% to 5% - I don't feel like that is worth one skill point.

The other two options may have some value, I can't tell yet.
They do seem somewhat lackluster at first glance though.

I would've hoped for something like "+1 to maximum Impales on enemies" or an increased effect of impales on enemies in general, not just 'non-impaled' ones.

Who knows, maybe those options would've been too strong.