I concur. These Sims aren't smart at all, they're arguably dumber than they were in the Sims 3. A Genius Sim isn't any different than a Focused Sim. There's nothing that makes the genius a genius.
Side note: Your sig confuses me. If your message is to make the Sims 4 great again, that implies it was once great before, which I completely disagree with. I'd say it was bad to "meh" to "some improvement, but it isn't there yet". Since I've no interest in derailing the thread, you can reply, but I won't. Just wanted to comment on that.