Are you saying that your interpretation is the same as that Spurs supporters? Not that I really care at all at his point three days after the fact, but I don't think that's what Minteh was saying at all.
I can't watch that video because it's geo-blocked but from memory he does three things. 1. He makes a prayer gesture, which I interpreted as "giving thanks" or being "grateful" in an ironic sense to Newcastle for selling him. 2. He then does the ridiculously overused "my house" pointing at the ground gesture, which I interpreted to mean "I'm here now" and I'm a complete wombat. 3. He then kisses his badge adding further credence to the idea that he's completely lost the plot, but which I also interpreted to mean "And I'm happy about being at Brighton and having been sold".
I think the whole escapade was incited by the away support getting on his case a couple of times prior to that, the most immediate example being when he caused Tino to roll his ankle.
I think his teammates may have been annoyed or more likely concerned that (a) he was inciting the opposition supporters in an incredibly inflammatory way which is never a good idea and (b) he's got caught up in the crowd booing him for his involvement in a few incidents and is clearly not concentrating fully on the game. His teammates may be saying in essence, "Forget about them, play the game".
Difference of opinion, of course, and impossible to verify either way. But I really think it's pretty unlikely that he's saying he didn't want to come to Brighton with that celebration. He may have been refusing to celebrate again like previously but I don't think so, I think he's perhaps even lulling the supporters into a sense that he's refusing to celebrate then gone off on them. Or, possibly another alternative, he was refusing to celebrate then the away support gave him more lip and he's turned on them then and there. Like I said, I haven't rewatched it since two days ago but that Spurs supporters idea doesn't jive with my memory of it. He seemed to be very very angry with the Newcastle supporters and not indicating in any way that he didn't want to be at Brighton.
Anyway without being able to re-watch it from memory my interpretation at least seems to track with how the three separate gestures might be connected. I don't see how those three gestures can be connected to your interpretation (if that tweet is representative of your interpretation) as a coherent slight against Brighton (not that the celebration made much sense in general).
In any case, it doesn't really matter at this point. I don't care what happens in the guys career. He's gone. Who cares. He never played for us and his refusal to celebrate the first time he scored against was strange and unneeded. This celebration was just more of the same in the opposite direction (as far as I could tell). He never built a connection with the support because he never played for us. Seems a little self-important to think otherwise from his perspective. Weird of him to expect that the away support would treat him like one of their own. But, hey, whatever. Each to their own.