That's sub-intellectual on two counts: (a) that goal was scored by a football club that doesn't exist any more and (b) the ensuing result amounted to a dropping of 2 points which contributed to them being relegated that season, and gave their rivals a point which contributed to them being promoted.
Celebrating a goal for another club that, in the context of the season, did nothing to stop them being condemned to 3rd division football until their demise, is certifiable behaviour.
#tinpot
P.s. so, if I were you, I'd send your 'friends' a video of the whole game with a message along the lines of: "here's a video of one of my favourite games. The result helped us get promoted and helped relegate the previous football club that played at Fratton Park". You're welcome