How would an optional, official parser be toxic?

[Shurrikhan]

This is the best solution, so you can easily say how good someone performes on his level of gear, because potency per second doesn't really change with gear, except of SkS and SpS based jobs.
But even this is only a minor inconsistence.
With just potency parsing it is more or less easy to compare the performance, because performance is not DPS including crit luck etc., it's the execution of the rotation.

Yup. It's just clean, precise action->reward. No RNG. Very little gear impact. Better for personal parsing, honestly. WAY better for broad parsing. I absolutely love the option when it or its likeness is given.