I don't know what this gif is about; blowing in cartridges was an NES thing, not an SNES thing.
Edit: you can downvote me, but I've owned a SNES since 1991 and have literally never felt the need to blow in a cartridge.
Edit 2: By the way, blowing into the cartridge never actually worked to begin with, even on the NES. It only seemed like a thing because of the North American NES's shitty push-in-then-down cartridge loading mechanism. Not only did top-loading consoles like the SNES and Sega Genesis not have the cartridge connection problems that led people to think they needed to blow on it, the top-loading revised NES didn't either!
I never owned a NES, but had a SNES and my brother also borrowed his friend's Mega Drive (Genesis for those of you in the US) from time-to-time. All of us would blow the connectors on the cartridges, regardless of console. If anything went wrong with a game, the first step to troubleshoot was to take the cartridge out and give it a good blow.
It was never about how the console actually worked, a five year-old isn't going to logically think about that. It was all about a perceived performance increase by doing it.
I'm with you - I never had problems with my SNES games starting, whereas having to re-insert NES games was common. If other people had problems with SNES games, I never heard about it.
It was shocking when I learned many years later that blowing on the cartridge did nothing.