It is on the same ballpark, and that's exactly why it's worth discussing. Runaway effects in the same ballpark can easily become issues with a feedback loop mechanism.

Interestingly this was a real concern before testing the first nuclear weapons.

Some scientists were convinced that the chain reaction would ignite enough of a fraction of the atmosphere causing irreparable damage. That concern was ignored because these weapons were critical for the war, and luckily nothing like that ended up happening.