The "Church of Wells" does present a challenge to consider our doctrine more carefully. Especially when it comes to the basics - how to be saved, what is repentance and how should that be done, how to pursue righteousness, what does a holy life look like, etc.
I think they are also upset with the complacency of Christianity. They see the extremes of religious hypocrisy not realizing that they have moved to the opposite extreme in an effort to differentiate and distance themselves from mainline Christianity. I have seen many through the years despise an extreme and then react to it by going to the opposite spectrum in their own extreme. Their Christianity is more like, "we are different than all of you. We are true disciples, and you can measure our walk and beliefs by yours and observe that we are more biblical".Our walk cannot be reactionary based on what others are doing or not doing (as the case may be). Our walk must only be in response to the Holy Spirit leading and guiding us by His spoken and written Word (which are not contradictory).2 Corinthians 10:12For we dare not make ourselves of the number, or compare ourselves with some that commend themselves: but they measuring themselves by themselves, and comparing themselves among themselves, are not wise.