Personally, I don't mind if the players have a drink; that's up to them - it's all legal. But this is a totally different game to 20/30 years ago - comparisons to Bassett's Wimbledon sides, George Best etc just aren't valid any more. All teams are fully geared up with nutritionalists, sports scientists etc - any slight advantage a team can have in conditioning, preparation for games should be taken.
No, not drinking won't turn them into Premiership superstars, but it's all about little 5%'s - being able to give 5% extra in the 87 minute to make a last-ditch tackle, being 5% more mentally alert to not lose your marker at a corner, being 5% more stronger in aerial battles, 50/50's etc. All those 5%'s all add up at the end of the game to seeing out a victory, or snatching a draw from defeat. Other teams in our league will all be doing this, why can't our lads?
As I said, I'm not saying they can't have a drink - I'm disappointed they're choosing to, however.