Perhaps, yes, but then isnt acrobatics just a form of athletics? Isnt insight a form of perception or investigation? Survival vs Nature? Etc.I think the amount of social influence skills is bit high; we got Deception, Intimidation, and Persuasion, but is intimidation not a form of persuasion. They are all a form of coercion, could we not have one skill: Influence or Coercion? You can describe how your character goes about this (via diplomacy, intimidation, bluffing, or other social tactics).
You can find highly related skills in a number of different cases.
Separating Intimidation and Persuasion to me is good because they help define differences in characters. A character who is big and brutish and who scares and coerced someone into going along is radically different than someone who charms their way.
By separating those different approaches into different skills, they make defining those two archetypes easier and avoid (discourage) to some degree the more generic approach.
But, that's me, I look at choices and lists of options (especially core) as how well they help to differentiate one character from another. I want to be able to look at a choice and use it descriptively - and if I have a guy with high intimidation and another eith high persuasion I get very clear differences to use descriptively.
If it was just high "influence", less so.
But to each their own.