I have real mixed feelings about these byes. Obviously if someone is unfit to perform for whatever reason it seems a shame to dump them immediately but it also seems very unfair that someone who did the training, learned the dance and performed gets kicked off while another is never in danger of this.
As Paul went this week, I don't suppose anyone feels too bothered, but what if it had been someone else in the dangerous "middle" zone: say, Patsy, Felicity or Jimi?
Personally, if someone is getting a bye one week, I'd rather see nobody leave that week and two people going the following week - so there is no free pass given. I certainly wouldn't want to give people byes for two weeks.