The ideal height/weight ratios certainly have changed over the past few years, and I don't have any problem with that.
I do have to share this, and I swear it's true:
I had an aisle seat and dropped my pen. I leaned over to pick it up and the overweight flight attendant accidentally butted me in the head ... with her butt, backing up. Of course she was embarrassed, poor lady.
I asked her if she was okay and admitted I had head-butted her pretty hard and apologized, and all of a sudden we both burst out laughing over the words, "head butt."
I don't care who you are; that's funny and she was a terrific FA. If they can do the job, I'm good with that!