Actually, come to think of it, it even kind of kills your options.
You can easily tweak it.
Since you have different category skills you could for example receive a 1+ combat skill point every two levels.
lvl 4 - 2 combat skills , 1 survival skill, 1 social skill
lvl 5 - 1 combat skill , 1 survival skill, 1 social skill
lvl 6 - 2 combat skills , 1 survival skill, 1 social skill
Or it could also look like:
lvl 4 - 2 combat skills , 0 survival skills, 0 social skills
lvl 5 - 1 combat skill , 1 survival skill, 1 social skill
lvl 6 - 2 combat skills , 0 survival skills, 0 social skills
It gives more options, more balancing and it does not overpower combat capabilities.
Your character won't be gimped in combat and still advance certain role play related stuff like charisma. It gives 0 benefits to combat. Same with reason or charm. It's all just RP related stuff.
And at the same time you can spend a few points on blacksmithing or crafting. It's not like you can ma out everything this way.
I guess only leadership would have to be moved to the combat skill section with warrior or survival abilities.