Maybe your opponent was more drunk.
Playing drunk and more traps and tactics

We have discussed this in other threads. For people who tend to overthink and confuse themselves in the process , being drunk might indeed prove "creative". It doesn't make you better player , if only was that easy but it does allow you to play without worrying about imaginery threats and for some that is all they need.
lol yes indeed. but it is known from studies that being drunk can increase dopamine in the brain and hence make you more creative. it also disinhibits you so you may see moves that you would otherwise not consider.

The real point is you were dead lost to someone almost 200 points lower than you.
yes that happens more often than i would think. however one thing i have noticed is that lower rated players are worse at endgames or maybe endgames are really my strength so i don't resign if i see an endgame coming. i find endgames the most exciting part of the game since every move is either winning or losing immeidately.
It's like when you're sober you're thinking along a single line but when you're drunk you can think laterally and with more creativity. Let me give you a reference game I am playing drunk and I am dead lost yet i manage to draw.