Why can't I choose a specific archetype despite having requirements

I am playing as warrior and I wanted to try something where I combine battle monk with 2 skills from paladin and fallen, but when I try and do that I can't, (screenshot)
I have all requirements and it doesn't say that I need (fireworks/Quadriple bash) prior to getting the archetype, is it a bug or misexplanation?

Here is the build that I wanted to do but can't
https://wynnbuilder.github.io/build...SN0T+0A0A0A0A0A1g000000z0z0+0+0+0+0--+xAcbAH7

 

you cant take abilities by going up the tree, you can only take whats bellow you or to the side of you

 

Where does it says that? As a user, all I see is that “ I have everything I need to take the skill but I can’t”

 

if an ability node is lit up you can pick it.
it doesn't light up if the ability above it isn't gotten or if you don't meet the requirements.

 

I know and its similar to what Hotaga was saying earlier, my question is "Why can't I get it despite having all [✔️], check screenshot for more information.
It doesn't make sense to me why I need to go down to skill to get it as apposed to getting it from the bottom

 

that's just how it works
think of it like water
water can flow down or sideways, but most of the time can't flow up.

 

erm actually :nerd: :skull: water flows up when its under atmospheric pressure like a siphon :doom:

 

It should say that you do not have the atmospheric pressure required to choose this ability