I see your point, my question is, would it be all that terrible if a player did spend five points to get five more skills, and the other five points to raise intelligence to get a possible 3 more skills? I think, if the character started with a 20 int and increased it to 25, and spent the other increases for bonus skills and took the noble class and were human, they would have 19 skills. Two things though, not every skill is going to see a lot of use, and secondly they still have to make the roll to succeed at using the skill.
If a player wanted to spend all of their increases to add skills, they are sacrificing constant increases to their saves, forgoing constant increases to their attack and damage with melee weapons, etc. They would be giving up a lot of all the time applicable benefits to be able have a chance to make a skill check with any skill.
Maybe I just have the feeling that there are just not enough skill slots. With a point based system you didn't have to put all your points into the same skill every time the character levelled. You could have two skills that were half as good as maximum for example. Star Wars doesn't really give you that option.