Well were is the RED rubber boot over the positive terminal to me this a design fault to fix this issue on the next service the positive & negative should be covered with boots what a BAD designMy question exactly.
NO ONE (well maybe a few) would consult a shop manual, research youtube videos or interrogate their dealer at the time of delivery to do a simple thing like disconnect the battery.
Seems like there would be a "dumb shit" protector on the pos. post of the battery. I mean when your battery goes dead and needs to be replaced you're most likely going to be at a beer joint or hotel.