For this kind of qualitative research I stand by the subjectivity of the questions asked as more informative. Retention is in itself a subjective construct.

Sure, you want "number go up" on average, but staying at a company for two years means something completely different to a restless jobhopper compared to a stability-minded employee with a family. Likert scales are perfect for this because they let respondents be their own judge of how well this job is retaining them.

Same goes for the perception of the value of their stock, but I admit it would be really nice to have the absolute value here in addition to the subjective scale to detect an interaction effect.

I do agree that the "actively looking elsewhere" label on the graph for the retention question is laughable.