It is interesting and helpful, because the reasons that these beggars are operating in Sweden was given (internal migration within the EU).
If he hadn't said it, replies would have expressed surprise that the prosperous Swedes had resorted to aggressive organised criminal behaviour, and there would have been speculation on why that is.
There would also have been questions on why the government hasn't done anything about it yet, which he also addressed in his comment.
Stop telling us what we can and can't talk about.