Eh. There are risks in life. Eating bacon can be bad for you. There's a slight risk in taking a mrna covid-19 vaccine. It was worth the risk for me.
Would I want to take a mrna flu vaccine? Probably not. But I may take it anyway because it's worth the risk as I'm getting older.
No benefit and more than a slight risks.
But I’m glad if you’ve apparently received it unscathed.