Fans were quick to quiz Henson about his former Wales teammates such as Sonny Parker, Brent Cockbain and Hal Luscombe, who were born in New Zealand, Australia and South Africa respectively. He said that he told them that he thought it was wrong at the time.
The 37-year-old was emphatic in stressing that those who qualify to play for Wales on residency grounds are not Welsh.
The former Dragons centre was also questioned about the current Wales squad that has a number of players born in England such as George North, Jonathan Davies and Ross Moriarty.
To this Henson replied: "Parent or grandparent is totally fine. Residency should only count if they've spent a certain amount of time in that country in their childhood."
This may muddy the waters somewhat, but it seems that Henson only objects to players that have qualified to play for another country as professional rugby players, like Halaholo and McNicholl.
This still raises questions about a player like Gareth Anscombe, who grew up in New Zealand and represented their under-20s, but qualified for Wales through a parent.
Anscombe and North both have a Welsh parent, but the winger has spent the majority of his life living in Wales, and their cases are ostensibly different. It is therefore understandable why some might have objected to the first-five's Wales call up, even though it was not on residency grounds.
It is reasonable to suggest that there will never be a consensus among all players, fans and coaches as to what truly determines whether a player can represent a certain country.
While World Rugby have extended the residency qualification period from three years to five as of December 31, 2020, it is still probably not enough to placate those that agree with Henson and this will always be a controversial topic.
This story originally appeared on RugbyPass and was re-published with permission.