I feel like “proper” finger placement on the home row forces your wrist in an awkward position and aligns with everything I’ve been told gives you injuries from typing.
I had many years without touch typing and when the pain started, I was already doing touch typing for more than 3 years. But, neither me nor the doctor couldn't blame touch typing for it. I was told any repetitive movement can cause it. Perhaps touch typing does kick in. But, the main cause was lack of any exercise with hands. I was only using my hands on my keyboard for a very long time.
I'm still doing touch typing. I actually stopped physiotherapy exercises for my hands shortly. Instead, I started to do sports and normal exercises to keep my muscles healthy. I've also switched to a split keyboard (Kinesis Advantage 2) with some customization on the layout to tweak it for coding. Seriously one of my best purchases ever. Since then I actually invest on my work equipment and office tools. Good monitor, proper desk and ergo chair. They last forever, and it's way cheaper than breaking your body.