I don't know where you last got your information about Epita, but this has been less and less true for around 10 years now.
They sought to have a state certified engineering degree for a long time and implemented a lot of changes around 2003-2007 that made the cursus a bit less about code a more about common engineering stuff (maths, physics, english, ...) with more structure (they structured classes with a credit system, made more standard student evaluations, ...)
Source: graduated in that era, been in touch with later students.