Then I don’t see a reason to add the paragraph that follows. You are comparing a possible BIP110 chainsplit with a “grinding to a halt infrastructure nightmare” while for practical purposes, as you said, it would not cause these issues.
There are many possible scenarios, but if any blocks at all get produced on the BIP-110 fork then you should expect that major custodians and anyone using attention will take a "wait and see" approach by suspending withdrawals / deposits / trades during the period of uncertainty.