There already is precedent over how to act in these kinds of cases. The bill fails.
It's not terribly common but it's happened before and this is how I always handled things as Speaker.
I struggle to conceive of a reason this amendment is even necessary, to be honest.
Then you handled things in a way that wasn't in line with the standing rules.
Even Congress has an established method of resolving ties. There is nothing wrong with establishing a clear method of resolving these situations, even if uncommon. Claiming the amendment is unnecessary is just wrong and silly.
Your former point is utter tosh, especially since the rules themselves didn't specify precisely what was to be done. It was up to the discretion of the Speaker. That is an arrangement that worked well enough, and both me then and Muaddib now were more than qualified enough to adopt a fair policy on ties.
Your latter point isn't necessarily wrong or incorrect, and it's rather kinda fair.
However I don't support the idea of the governor being tie-breaker.
I'm not opposed to the idea of entrenching option 4 (as Muaddib put forth) in the rules themselves.