Did you stay at a Holiday Inn last night?Notable no, but I did play all through high school and had several friends play low level in college, so I do understand that a two second celebration after making a great play is pure emotion and nothing else, clearly you can't say the same.
By the way , the penalty wasn't for celebrating it was for taunting and the players action clearly and specifically fits the definition of taunting.
Here'spart of the taunting rule
"crossing one’s arms in front of the chest while standing over a prone player"
Obviously #1's act was taunting and could or should have drawn a penalty. If you or others have examples of officials not flagging this specific taunting I'd be interested in seeing it. The tired excuse that others do it so why should I be penalized is childish. As long as there is a rule whether you agree with it or not is irrelevant. If you break the rule and get busted it's on you.