There were always Hezbollah supporters in Lebanon.
The uproar was specifically caused by the fact that Ain al-Mraiseh is not considered an area where the party is dominant. For that reason, users considered these movements as "provocative."
Yeah I know. It's just funny that there's an "uproar" and it's seen as "provocative" to publicly come out and support a group that happens to be protecting you from getting steamrolled by a government as ruthless and callous as Israel. This is their lives and their homes we're talking about. What did people expect?