I don't think I understand your point. MCEBuddy support ShowAnalyzer and Comskip - two competing commercial detection softwares. Both are free, except that Comskip can be bundled with MCEBuddy where as ShowAnalyzer needs to be installed separately.
AGain, neither competes with MCEBuddy, rather with each other where as MCEBuddy can use them both, i.e. provide users an option to choose the one of their choice for commecial detection.
The automaticaly installtion was done for ease of the users since it give them an option. However going forward I've included a prompt to install ShowAnalyzer. If you still don't want to use/install it - it's your choice / your loss.