Where in those “184 year old rules” does it say second place wins?
I guess you haven’t been keeping up with the news...but, to help you out, those rules permit a redo of the whole process (excepting, of course the people voting) if the arbitrary threshold of majority of delegates is not reached...thus allowing a second place finisher to kiss up to enough delegates in order to gain that majority...
this system allows backroom wrangling and strongarming to take place, stuff that was common in the 1830’s, but should have been modernized to reflect a popular vote as the methodology; but that would eliminate the power for party bosses, so...
That is not “winning”, that’s “not losing”, and there is a BIG difference.