While this technically might be true, gaming history has shown that by far and large people will take any opportunity they can get to gatekeep and belittle others. One of the more notable examples of this exact phenomenon is when the GearScore addon was released during WoW's Lich King expansion. It amplified a toxic element of that community by several orders of magnitude almost overnight.
I would argue that the ones who would use parsing solely as a personal improvement tool are the exception, not the rule.