"Imagine if it was last week's situation, where one team was down to 14 guys for 55 minutes and then had to play an extra 10 minutes of extra time ... would that have been a fair outcome, given they'd battled through the whole game with less players?
"Or if, at the end of extra time, you had a penalty shootout ... is that really how you want to determine who wins the series?"
Many rugby league fans took to social media afterwards, calling for an NRL-style "golden point" format, where the first scorers in overtime win.
Ironically, international league doesn't usually embrace this concept either. A draw is a draw, unless it occurs at the sudden-death stage of a tournament.
"Extra time may have been interesting, but one team may have been able to manager their bench better than the other, simply because of circumstances," said Tew. "Anything could have happened that would have made that an uneven process.
"At the end of 240 minutes, if we're all square, we're all square."
Notably, though, the All Blacks trailed their rivals for only three of those 240 minutes through the series.
Tew told Veitch NZ Rugby would lodge no formal protest against the performance of French referee Romain Poite, but that all the series referees would be assessed as part of an overall review.
"It's a process that would normally be followed and we'll leave it at that," he said.
Poite had a chance to award the All Blacks a potential game-winning penalty in the dying moments, when Lions fullback Liam Williams spilled a kick-off forward and hooker Ken Owens played the ball from an offside position.
After TMO review, Poite ruled it a case of "accidental offside" and overturned his initial penalty, awarding an All Blacks scrum instead.
"I think [All Blacks coach Steve Hansen] summed it up last night," said Tew. "The decision was made on the field and that's the end of it."