Yes. California's Good Samaritan laws had to be rewritten recently because they were so poorly written.
I was REALLY glad to see CA do this.
Unfortunately, many states still have Good Samaritan laws that leave the door open for law suits.
Reviewing some state's laws, I found good samaritans can be exposed to at least two legal risks in some states, if they provide any sort of assistance: 1) they should be able to demonstrate they posses training for medical aid they deliver and/or 2) they can be sued if "negligence" can be proved. For example, in some of those states: if you arrive upon the scene of a crashed car on fire and you pull the injured driver out of the car, you can be sued if they had an injury that their lawyer can prove was made worse due to negligence performing the extraction.
My advice to potential good samaritan skiers (many skiers here fit that category) is to review the good samaritan laws of the state(s) you ski/play. You might be surprised what you find. I know I was (I live in OR).