Mike Tindall insists England's party days are over as they gear up for the business end of the tournament, which continues against Scotland next Saturday.
The England vice-captain has been in the spotlight since joining a group of team-mates on a night out in Queenstown a fortnight ago, when he was pictured in conversation with a woman.
Tindall admitted it was a relief to return to action in the 67-3 victory over Romania, which leaves Martin Johnson's men with one foot in the World Cup quarter-finals.
McGeechan coached the Lions tour to South Africa in 2009 and insists provided things are done in a "sensible" manner, there should be no reproach for players unwinding while away on international duty.
McGeechan told BBC Radio Five Live's Sportsweek programme: "Players have to have a night out, they have to be able to relax.
"Yes, they know there is responsibility and I think they understand that.
"To argue they are in the wrong place or whatever, I just disagree with it.
"They have to go out, they have a drink and it was with the blessing of Martin Johnson and the management. They need that ability to switch off when you are in an intense pressured environment - not just at a World Cup, but in New Zealand.
McGeechan added: "Martin will have told them to be sensible and know that social media sites and everything else have made it a very different perspective.
"I have not heard or seen anything where it was not the case. I was just trying to work out why they [media] made so much of it."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.