I wouldn't call SS the end-all, be-all solution for getting stronger, that would more closely be something like "progressive overload using compound exercises (or whatever you want to get stronger at) while under caloric surplus and having decent macro/micronutritional spreads. Also sleeping well and not having any other unusual health problems".

SS is a great program for beginners, but any other program that fits the above should work (like stronglifts). I also wouldn't recommend SS to intermediate or advanced lifters, when linear progression is no longer possible.