I think she looks just fine in these shorts. I have a pair of shorts that looks similar to what she was wearing and I think they look good on her.
I think that if we as American Citizens are allowed to dress down and wear casual shorts and shirts whenever we want when we aren't working then I think the entire First Family should be allowed to do so too. I really do think it must get very tiring for all famous people to have to constantly wear fancy high class fashion clothes all their waking hours, even when they're not even working/acting/whatever, just to maintain their image. I know I would get sick of doing that if I did that. It's their right to wear jean shorts and shirts, and wear whatever they think feels comfortable on them. I understand the need to dress up for events or public speaking or important things like that...but when she's just walking the family dog or relaxing at the White House with the children or having some chill time or the family is on a vacation, there is totally NOTHING wrong with jean shorts even if they are cut-off shorts. I honestly do not care. I can't stand people who are stuck up and actually think that they must constantly wear fancy high class fashion clothes and fancy expensive cakey make up and wear high heels (ouch my toes just to think of that) all their waking hours...it just makes them look like they have egos the size of Jupiter. The Obamas are more humble than that which is why you will find them wearing shorts and shirts sometimes, and the kids in casual clothes more often. I like humble people much better than people who think they are better than you just because they are famous or is the president or the first lady/first family or just because they think they look good in fancy expensive clothes. Stuck-up people are frankly just very annoying.
The media needs to find something else to whine about. What the First Family wears is not as important as the state of the economy or the troops in Iraq or other much more important things that we should be focusing on. The media just wants to cause drama for the First Family because they know the GOP likes that, and they should be ashamed of themselves to attempt to make the First Family looks bad just because Mrs. Obama wore a pair of jean shorts. The media just loves to blow every single thing out of proportions because doing that earns them attention which earns them ratings which earns them $$$. If they feel the need to blow things out of proportions, they should do so on more important things that needs our attentions such as children from poor families going hungry or crimes or child molesters or things that urgently needs our attention much more than a pair of jean shorts on a very respectable wife of the respectable President. Besides, I don't think anything she wears will make her look less respectable...she has just the look that gives her the ability to look good in everything from casual clothes to high class fashion clothes, she's that beautiful. So that pair of jeans and a t shirt does not bother me one bit. I still think she looks just great.
So the media just needs to STFU and go focus on something else, and leave the First Family alone.