It's not really unnecessary. Do you know "begin with your name" I heard rumours that it discontinued because of a kiss between two girls. So the government stepped up and the author stopped it and only gives us pictures of the two having fun together.
Homosexuality is strictly forbidden in almost all Asian countries. Not even just Asian countries but so many more. And having the cencor with flowers or a "bait" where the girls show their love in indirect words or
actions is just a safer way to make sure not to be stopped. Especially China since they have very strict media regulations, flowers can be understood but at the same time it is a BIG cencor and if the artist/author ever is in trouble for it the can just say that it is not what it is and make an easy excuse (sry I ccidentally posted the first one)
I hope you understand and if cencor isn't really your thing then maybe look up some of the mahnwas since Korea isn't as strict with the stories but they are still censored to a certain part. (●'◡'●)ノ
Godamn censoring! Also that flower looked to me like teeth with tentacles
Another Chinese manhua to drop and just for the unnecessary censoring