Hi Ron:
Not giving EC could also provide a truer guage of the students knowledge.
When I see a doctor, I don't ask or care about their grades they received, I'm only interested in how they can help me. Teaching is about learning; we only use grades to be consistent and measure student performance. Tweaking the grades to (raise) the grade does nothing to measure student performance.
Perhaps it works for some teachers in certain classes. I just don't give EC.
Regards, Barry