Agree with a lot of what you post, but not on this. The likelihood is if Kyle et al had the discipline to abstain from the drink an extra couple of days they'd be celebrating twice as hard as they'd have the double to look back on. I'm sorry but they're on 100s of thousands of pounds a week, it's not much to ask them to sacrifice putting their session back a bit and risking it coming on the back of a defeat.
I don't necessarily blame the players per se as it was the ones that gave them permission to get intoxicated that need to give their heads a wobble. As with any employee if you give them an inch they take a mile.
They went out on Sunday night and even if they staggered in at 5 am Monday morning they had the rest of Monday and four whole days to recover. How long does it take the average Joe to shake a hangover off? I'm an old sod so feel it more now but after a day lying about, drinking soft drinks, a bit of food I'm as right as rain the next morning. These are young, fit highly trained athletes. By Wednesday when they reported back for training they would be bang on it. Now if they carried on a few more days then yes, we have a problem.
I'd say it was more a mental switch off after the relief of winning the league. That and the ease of how we beat United twice in the league games made them go into it thinking they only had to turn up to win. When they saw Martinez and Varane at center half, after not playing for months and no Shaw they must have thought happy days. We all did. A slow start and two mistakes that led to goals did for us. It's the worst thing that can happen against a defensive low block side as we know from.past experience. With a slice more luck we could have not only equalised but won it. Haalands shot goes in instead of hitting the bar, Alvarez scores that sitter he missed and Doku would have been scoring a late winner. Add to that if we'd been given one of two decent penalty shouts we had.
No, one night on the piss six days before the final didn't cost us that game. Pep and the clubs doctors would never have sanctioned it if they even remotely thought it would.