And in the process prove his late return from New Zealand - and missing out on the squad's three-day training camp in Fermanagh - has not harmed the team's Heineken Cup bid.
"It is not ideal and it is not perfect but we support Johnny being home for the birth of his child," said Anscombe.
"What we do take from it is that he is as professional as any guy going around. He knows how to look after himself and he knows what is expected of him.
"So I have full faith and confidence that Johnny was back home in New Zealand doing the right things for preparation.
"When you do things like this, you've got to step up. We are expecting him to give an eight out of ten and in a perfect world, we might have looked at it in different ways but it is what it is."
Afoa was in the Ulster team beaten by Leinster in last season's final at Twickenham and has gone on to be involved in 19 of Ulster's 25 competitive fixtures this season, playing 1,323 of their 2,000 minutes on the pitch.