Watson, father of Bombers' captain Jobe, said questions directed at players during ASADA interviews that suggested supplements they allegedly took last year could have potential health effects on their fertility or their unborn children were disturbing.
"Massively. Can you imagine if you were confronted by the discussion that particularly Mark McVeigh (was), his youngest child is 10 months old and he was confronted by that," Watson told Melbourne's SEN radio.
"Part of the questioning and the tactics applied by ASADA are also there's a little bit of good cop-bad cop, scaring players along the way.
"But it has been extraordinarily confronting for the players."
Watson said he was sure coach James Hird, senior assistant Mark Thompson, football manager Danny Corcoran and club doctor Bruce Reid wouldn't have knowingly allowed any supplement to be given to players that posed such dangers.
"I have no problem accepting that and my son's involved in all of this," he said.
"I have no problem accepting that they would not have been party to that.
"What's taken place is outside what was accepted by the football club people and the football department and the club doctor.
"This is a maverick operation that took place outside what they'd agreed upon and what the players had agreed upon.
"It's important to make that distinction."
Sports scientist Stephen Dank, who was running the Bombers' supplement program, was sacked last year, while fitness advisor Dean Robinson has been suspended pending the investigation.
Watson said whether club officials had put appropriate protocols in place to try to safeguard the players was a separate issue.
