This implies that your CAWs will suck even in exhibition mode unless you take them through career mode. If true, that's gonna have a pretty polarizing response from people who don't want that kind of a grind.
Like if I'm creating myself, going from a legit nobody to a star and building my stats along the way is fun. Zero issues with that.
But on the other hand I can see why it would be annoying to create someone like Okada and have to have him be a huge jobber in the game and play through a story mode where he's treated like a nobody. And then have to repeat this over and over for every CAW you make.
There's a fine line between the grind leading to fun replayability vs. the grind feeling like a chore making you not want to play. So we'll see how they roll this out.
My personal guess is they'll include the ability to unlock an accelerator where you can eventually just give whatever attributes you want to CAWs from the jump. More skeptically, they might allow you to pay for it ala 2k. Failing that you could have a HCTP-esque workaround where you rank up one CAW then make a bunch of copies of them and turn the copies into whoever you want.