At the moment SX is the most convenient and Feature Rich way to hack your switch, and is a perfect entree level way of Switch hacking for the average user, and remember the key word average here, as that is what most people tend to be. A lot of people want a no fuzz, convenient way to start exploring their Nitendo Switch, and currently there is no better software doing that than SX. Eventually Openstuff/free will catch up, but for now SX has shown some impressive features and is spearheading a lot of firsts for Nitendo Switch, while free-alternatives is not doing much of that at the moment.
I like to mess around with everything, but it's undeniable how much of a attractive offer SX-OS is as it currently stands. And to those who say people aren't willing to pay to pirate, you'd be dead wrong, plenty of people donate to Emulators to do just that as well as to Denuvo cracking groups.