An underrated aspect of S&S is that it works even without a specific goal. Of course it's very good to have specific goals, but there are so many people out there with vague goals like "I just want to be leaner" or things like that.
Every other program I know has specific day to day and longtime goals. For example Starting Strength, 5/3/1, even RoP and all the other similar programs all tell you to do X reps @ Y weight on day Z.
If you don't make it you failed and have to reset. Resets are actual parts of many of those programs.
With S&S you don't have to use a little bit more weight than in the last session (cf. Starting Strength), a certain amount of more/less reps (cf. rungs in RoP) or some specific percentage based weight/rep combination (cf. 5/3/1).
All you need to do is 10x10 swings and 10 TGUs with a weight that you pick and just do it. It doesn't matter if you can't make it through the whole session sometimes, because it doesn't affect your other sessions of that week like it would do with the other programs.