Those are all completely different because they compound on each other and you know it. Each stage of Archery gives +10% , where as the Int Mastery just flat out invalidates the previous perk entirely. It's not compounding to build on the prior one, it just out and out replaces it
Also the difference is it's a mastery, so losing one of your main capstone abilities hurts extra hard too. I definitely agree the full mastery is hilariously strong and will almost certainly get nerfed
They should replace the 5th level int mastery with something else like "Robotic Turrets now stagger enemies" or at least slow them or *something*. Currently they don't really do anything because enemies run through, and if you have a set up so that the enemies can't just run past them, they don't do enough damage to justify all the time spent mining.
If the mastery 4 said charge faster by 50% and the mastery 5 said charge faster by 100% you would be ok with it?
You're getting stuck on the way it's worded.