It’s so contrived and yet needs so many leaps of abstraction that I don’t think it makes its point well at all. “Bro my controller totally didn’t work that time! We would’ve won the match otherwise I promise.” Do you really think it was the controller that lost the match?
It is a well-known proverb that is centuries old [1]: it's essentially a canonical way of refering to the concept of something small having big consequences.
Proverbs are often contrived (e.g., "Those who live in glass houses should not throw stones" - who lives in a glass house?).
It’s an older way of writing English. But not like super old. Basically the kingdom was lost because of 1 missing nail.