Anything’s possible. But I have cameras outside that are in direct sun for part of the day. One is just about a year old the other is older but it has only been outside about 6 months, never have I seen a pink color. Other than my neighbor who apparently loves pink clothes.
My brother has 3 V2’s outside in Florida, 2 of them are over a year old and no issues. I don’t know where you live but I doubt it’s any brighter than Florida. So if bright light was damaging the sensors as you say I would think we would be hearing about it more often.
Now you could very well be correct. It’s actually very easy to find out. Since Wyze has said it’s not covered under warranty then you have nothing to loose. Take the housing off and cycle the IR on and off and observe the filter.