Ugh I hate when people assume to tell a pregnant woman what shoes to wear. If she can wear high heels and are comfortable in them then more power to her. It's not like she is horseback riding while holding a martini.
I agree. Clearly she's accustomed to wearing high heels, and even a low heel can get stuck in a grate (heck, I've been known to stumble in flats). I've also noticed that there are some celebrities who have worn high heels throughout the duration of their pregnancies, without any apparent problems. I think it all depends what someone is comfortable in to begin with.