A man was given a suspended jail sentence in the UK for making a joke video about Grenfell. To (on the whole) great and uncritical applause from the media and general public.
A 10 week jail sentence for a racist video making fun of a terrible tragedy doesn't bother me as much as locking up political opponents
edit: also the article doesn't mention how large the groups were. There's every possibility one was quite large because you know it went viral
In my opinion the size of the groups doesn’t matter when it comes to whether or not it should be a crime. Though I understand it may be a relevant factor as far as the law is concerned.