Well, yeah, the Factory Default settings on some RAW image processing software are going to create very bland, dull images. If Lightroom is making the images look crappy, it's definitely due to the settings. Normally, when starting with a new RAW image processor, the user needs to "dial it in", and establish his/her own preferences in how the images are going to be "interpreted". Part of this is due to the fact that no two people want the same, exact type of file interpretation, and there are also multiple different ideas of what makes for the best interpretation of a RAW file.
There are some very,very advanced workers who believe that a RAW file ought to be developed as a rather flat image. One that preserves detail in the highlights and the shadows, but which has a very gentle tone curve. Some of these workers are people with extremely advanced technical backgrounds, and one of them is even the author of a kind of niche RAW development software application (his name is Iliah Borg). Other people want to "develop" the image quite fully, at the RAW converter stage, increasing sharpness, acutance,contrast, color saturation,etc.
So...different RAW converters will give different "looks" at their baseline settings. Some RAW converters offer a series of pre-determined "looks", usually with descriptive names. Camera makers often have a name like Picture Styles, which communicates the desired changes to the RAW data that the RAW conversion style will apply when making a JPEG or TIFF image from the RAW image data.