It's more accurate to say that Si ego types pay attention to whether things are easy, and put effort into making them easy. If someone is likely to say something is easy irrespective of whether it actually is, that would be more like an Fe "pep talk".
I think that in the case of ESE i brought as example you could be right - there is a medley of pep talk and Si easy-doing.
"Inasmuch as it is nothing but pure communicability, every face, even the most noble and beautiful, is always suspended on the edge of an abyss"
They asked the fox, "Who's your witness?" The fox said, "My tail!"