TESU/Study.com partnership transfer max of 90 credits?

[jeffreymb]

From TESU's Study.com information page (https://www.tesu.edu/studycom/#who-is-eligible):

Study.com and TESU have an exclusive partnership to make transferring credit from Study.com courses and earning a degree as seamless as possible. If you follow our degree plan guidelines, up to 90 credits will transfer and apply to a degree at Thomas Edison State University, except when you use another potential source of transfer credit duplicating a degree requirement that could be satisfied via Study.com courses. A Study.com transcript is required to verify acceptance into the partnership.

Am I interpreting this correctly that the Study.com partnership limits you to transferring in 90 credits, therefore requiring you to do 30 credits with TESU directly? Or, is that 90 credits the max from Study.com and I can transfer in the remaining credits from CLEPs, and other credit sources?

I'm trying to figure out what the catch is with the Study.com partnership. Why wouldn't everyone do it? If, as I've gathered from other posts, only one Study.com course is required to qualify for the reduced tuition etc, what is there to lose?