Unfortunately yes, Maschine does not support saving sounds with relative sample positions so in order for the sounds to find the samples, each library folder has to be added separately for each product. In addition, if you move a library to a different location on your hard drive, you will have to add the new library location to the User library and rescan. If you only want to use the individual samples in Maschine and not the instruments, then this is not necessary and you only have to add one folder to the User Library that contains all of the sample folders.