Exactly!
That is why using a water conditioner that removes ammonia is pointless. If it's at the beginning of a cycle, you will forever be in that cycle. The only way it makes sense is to use it as a last ditch effort. Like if you have an ammo spike. BUT...that means you have a bigger problem...over-feeding, over-stocking, dead fish somewhere in tank...fix that before trying the miracle cure all.
I stick with API Tap Water Conditioner. No frills or added benefits. Because in reality, if you have a stable tank you will have no need for all of the other things they claim to do.
Ever hear the adage K.I.S.S? = Keep It Simple Stupid