protein balls: recipe fail?

A friend of mine tagged a protein ball recipe on Facebook and I decided to give it a try.  It was only three ingredients:  Vegan protein powder, rolled oats, and a banana.  Only three ingredients?  Right up my alley.  But I was skeptical of how it would taste with ONLY three ingredients.

I made two batches:  strawberry and chocolate.  Both came out identical, even though one had twice as much protein powder.

I used non-vegan protein powder and, on the first batch, added more than the stated amount.  I hadn't planned on adding more protein powder, but once I mixed it into the recipe, the dough seemed very sticky, like there wasn't enough dry ingredients.  And the recipe didn't state the amount of powder to use, actually.  It just said, "one serving of vegan protein powder."  Well, how much is a serving?  Half a cup, a full cup, a whole container?  I posted in the question in the Comments on the Facebook post, but the author didn't answer.  It could be that maybe I processed the dough too much.  The other change I made was to roll the balls in unsweetened coconut.

I then made a second batch with chocolate protein powder, but used what is considered "one serving" for the brand I use.  I also didn't process the dough as much.  I only processed until the ingredients came together.

As far as taste goes, they're pretty good.  But the primary taste is dry oats.  Not a bad thing, but I prefer the more complex taste of other recipes that use some sort of nut butter.

I wouldn't call this recipe a fail.  It's just not a recipe I'd used unless I was truly being lazy, or if I didn't have nut butter in the house, or maybe if I had to use up the last overripe banana.

Strawberry.  I was hoping for a nice pink color, but my husband says they look like meatballs with coconut.

Chocolate.  These look a little more normal.