Evidence is from psychology, especially where it goes towards advertisement or political science, that people will capture "beliefs" from first exposure. For example, it is felt one can guess the news paper you read from your opinions.
The question is otherwise looking for the likelihood that a case based reasoner's exposure to reasoning theoretics is framed by that first exposure to case based notations in the absence of a grounding in either argument or graphical notations. It is otherwise looking at how critically the case based reasoner was in adopting case based reasoning. The question is otherwise then looking for that class of bias that helps promulgate case based reasoning.
Invisibiliy bias is an obvious choice, especially because the leaders of the case based reasoners deliberately directing "gaze" away from goal-oriented requirements engineering. Confirmation bias is as likely in play, because the use of gamification and especially in the presense of Invisibility bias. Stereotyping bias seems to be present, given the interpretation of goal-oriented requirements engineering as provided by leaders in the case based reasoning camp. Certainly that hints at Selectivity bias. There is as likely Acquiescence bias in the adoption by people whos starting position is sans argument theoretics, graphical modelling, and which can account for the adoption on first time exposure. We could go on.