The Importance of TESC Graded Credits When Applying to Graduate School

[soliloquy]

I think there are two or more issues involved here- the first being that, every school has its own policies on how it treats non collegiate sources of credits when it comes to acceptance for admission or GPA calculation, and the second being that, depending on the school, the "60 credit policy" may or may not apply to graduate school admission criteria. TESC and other "Big Three" members seem not to have a 60 graded credit policy. There may be other schools who also don't have a 60 graded credit policy.

From reading your quote in the OP again, they said they were referring to "competitive" programs. I would not consider any of the big three to be competitive programs.