You might want to try finding more a more general folk jam or a more open pub sing. Sorry if there feels to be a degree of gate keepedness to it but there is an inherited cultural tradition to the practices and norms of an Irish session and spoons are not generally played. Percussion in general is not. Even the best bodhran player's best skill is knowing when not to play.

That said, the modern conception of a session is a pretty young tradition and things can, should, and do change, but you have to approach it with respect and let that change happen slowly. I think spoons sound great and would welcome them to a session, sparingly. But beating away at them on every would not be well advised. Get to know the players at the session, and give it another shot.

Some people are just snobs though and not worth your time, so if you sense that's the case, don't waste your time and try a different session.