It's not but it's not good for it to always happen and it matters to put light on the situation for people to have a voice and have the rights to fight for what they think is right and yeah it's not good but yet again do realize it changes the society.
I do get where you're perhaps coming from but do realize it brings more awareness to people as well that Activists were able to use Twitter to publicize the use of tear gas but activists in Palestine was able to give advice to those who help in need of it + giving them the advice to prevent stuff like this.