Anyone is free to choose how to spend 20 euros per year. Given that it is quite likely that most users will not use all the tools of this utility, in many cases the tools already integrated into the macOS would be sufficient, in others it would be sufficient to install low-cost or even free utilities. My impression is that in general users don't know what can really be done with the operating system alone, and without being geeks!
A tip in particular for those who have made the switch from Windows to macOS: don't stop at appearances, don't assume that "if Windows doesn't do something, then the Mac won't do it either" or that "if the Mac doesn't something the Windows way, then it means it can't do it. "