Its not gunna be a huge problem though, I mean the skills will be the same... you can still have a great orc assassin... he just wouldn't be as nimble as a bosmer... I believe you're under the assumption that picking a combat race for stealth would kill your character... it wouldn't. How many times have you played a mage with a race other than altmer or breton? Prolly not many... you already get penalized for the magicka aspect of the race decision... why not with strength? Or speed? Speed doesn't affect sneak, just speed. And if you choose a bosmer barbarian, then deal with the issues you may face for not being as strong, and use the speed you have to your advantage... it doesn't make one race necessarily worse than another, just different.
You raise a good point, though I will admit I never play Altmer mages. I find them to be annoying jerks. I also have never played a Breton in general. Just not interested. I choose race based on which ones I like, not because I'll get a cool stat boost. :shrug:
It's really a tough issue, because I don't think your Bosmer barbarian should never be able to achieve 100 strength for instance. Though I'm fine with Altmer and Breton's having higher magic. I think they should give the other races better racial bonuses instead of penalizing other races.
Edit* @Worm82075
This is where are opinions differ. I don't see the replay value in playing as a different race just because they get better stat bonuses. They should differentiate the races in a separate way then saying. "Okay, Orcs and Nords are the only race that can reach 100 strength. Or, they can achieve 110 strength but other races cannot" As is pointed out above, the other races kinda get the shaft in terms of racial abilities as opposed to Bretons and Altmer. And here is where we agree. Altmer and Bretons will be better spellcasters than other races because they have a higher mana pool. But Altmer in turn have a HUGE weakness to magic. Which is a tradeoff. If all the races had some sort of advantage/disadvantage similar to the character creation in Daggerfall I would be fine with that. We're kind of saying the same thing only wanting to implement in different it seems.