I did not know her statline used to be different, but my thoughts on finding this out:
Why was she dying? because her AC was (and still is) trash, but so why did they tank her combat ability to achieve it? Maybe tank one of her dump-stats instead? Or better yet, give her heavy armour proficiency and make her starting armour chainmaille, similar to how Wyll gets rapier proficiency that he shouldn't have as per his class.
The last thing we need are more rule exceptions. This suggesting being exceptionally egregious as she is a DEX based trickery cleric. It would be completely counter productive to give her heavy armor. Her combat ability isn't tanked so I've no clue where you got that idea nor is her AC trash. Have you played a T1 5e adventure before?
