Yes, the pose is too provocative and though she has the skills, it didn't hurt that she was blond and beautiful.
Yes definitely, Sports Illustrated is not known for their progressive portrayal of strong female athletes—the mag is still for a predominantly male audience.
No, people who complain about the setting have probably forgotten that she's a skier and that is exactly what they do with their bodies.
I don't think so. People take photographs too seriously.