“The timing is wrong, to be quite blunt,” declared Ambrose on Saturday.
“This happened when we went to Sri Lanka last year as well when Simmons made a statement about interference in team selection and, about two or three days before we left for Sri Lanka, they suspended him, which was wrong.”
Simmons’ sacking has triggered angry responses from an increasing number of cricketers and officials who have condemned the decision.
They include cricketers Kieron Pollard and Darren Sammy, the former T20 captain who was also sacked after leading the West Indies to two T20 World titles, as well as commentator Fazeer Mohammed, and Grenada’s Prime Minister Keith Mitchell.
“If you weren’t happy with the things he said, why pull a coach off a tour two or three days before?” said Ambrose.
“All they had to do was maybe send him some correspondence saying they were not happy and they would deal with it when he gets back and now this time around, it’s the same thing.”
The West Indies face Pakistan next Friday in their first T20. Ambrose believes the firing of Simmons by the West Indies Cricket Board (WICB) represents a threat to team morale.
“The morale of the team can’t be good because when you would have at least had a camp and then you learn one or two days before departure that your coach isn’t going to be around because he’s been fired, it must send the wrong message,” he said.