Was every archer/bowhunter who lived before us wrong? Did not elk and even elephant succumb to well placed arrows that were not front loaded?
Are we to suggest that anything except EFOC arrows are inefficient? Of course not.
Some folks are in that "epiphany" state over recently published data from the Ashby report(s).
That's okay, but it doesn't negate what has happened prior; it is just another choice, out of many choices.
Some of us are very happy with standard fronts of center, double bevel broadheads, and longbows and recurves under ninety pounds. We are happy because we know what works, and has worked for centuries no doubt, will still work well indeed.
Not to say the EFOC and such is B.S., because that would not be true either. It is saying....look at what has worked as a model for what will work and don't be confused by those who would tell you different. There is a line of diminishing returns on both sides of the spectrum, and there's nothing wrong with being in the middle.
Your arrows are fine, as long as they are flying perfectly. No amount of EFOC or Mass will make up for wobbly flight or angled impact.