Whilst I obviously defer to Gemma's expertise in all things including parenting, personally I would find that set up extremely bloody hard. He'll be back for a month and then off to do the strictly professional dances and then the main show right up until Christmas. If last year is anything to go by, he'll inexplicably stay there even if he and his partner are knocked out. A few weeks and days here and there every few months, doesn't strike me as an ideal relationship or parenting set up.
But then I used to get pissed off with my husband when he was an hour or so later home from work so perhaps it's not for me to judge!