Compared to a butt splice connection, that one offers a lot more wire-to-wire contact, and when it's soldered, it has virtually zero voltage drop and no way to develop a loose contact.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!