Agree for 1,5V LiIon, the VX4 and the Gyrfalcon S4000/S8000 are the only for testing this type.
But I doubt the normal customer knows fora like BLF and will trust more Amazon reviews than a advanced test here 
. Most will buy some very basic chargers in price range <20$, chargers with maybe one/some LED for state or charging in the flashlight itself.
And don´t think Xtar is more focused to these consumers, Xtar is in many features only many years behind the competitors 
Xtar asked in one topic about the discharge-feature so I guess they are interested in making a new charger that ppl like us would like, maybe they show I´m wrong with the classification of their chargers, but maybe not.
Time will tell