Welcome to the friendly bunch

I wish it was in better circumstances though and i'm sorry that you got hurt. As others have said what happened is very rare but not impossible...that's why we all follow the rules with regard to batteries and safety.
I guess if it keeps you from smoking the death sticks then that at least is a positive outcome. Far more people die or are injured each year from fires caused by cigarettes than they are from batteries
Easyjet now says in there safety blurb that if you become aware of any electronic device overheating then contact the cabin crew immediately.....it's a risk we accept to have our modern pleasures.
I hope you get back to rights soon.