Yeah, I can see your point. It’s certainly not something you should overuse, just because it’s convenient.

I feel like the redeeming points are that it will only be available, if it’s the same error type. And if you use a catch-all error type, like anyhow::Error, which makes it likely for nested results to use the same error type, then it’s likely that you can use ?? already.
So, personally, I feel like it isn’t something that juniors will readily/wrongfully incorporate into their error handling routine and rather it is a tool that’s available for when you know what you’re doing.