I have read that many of Michelle's fans and non fans think she is a hard worker, a very focused and motivated woman who is obviously very bright. I have never heard or read anyone link these comments in any way to Sasha.
I have read some comments that state Sasha made pretty bad choices during her acting career-like the Bratz movie and that weird reality show she was on that only lasted a few weeks. But never that other skaters were "smarter" than her. Maybe the OP who made the comment is confusing people's opinion that Michelle made a smarter choice in 2006 to peruse school rather than an acting career like Sasha did.