Nutritional ketosis is safe and decidedly healthy for type 2's and prediabetics. Ketoacidosis is potentially deadly, and would require a perfect storm of extremely high blood sugars, illness and likely, certain medication you're 100% certainly not on right now, for it to happen in a T2. For a T1 it's something they need to be weary of, yeah, because they don't need an unlikely perfect storm for things to go t*ts up.
Two completely different things, though they might sound the same. You're freaking yourself out when there's no need to. You might want to stop doing that.