Yes, exactly. Think about it, we need lots of filter area and water flow for benifitial bacteria to survive. There is VERY little area and zero flow in a bottle. I don't doubt there could be some bacteria in there but what type I don't know.
Is it just me or are there lots of threads of people on this very forum having problems with cycling and using the bottle? Including this one?
As for companies making stuff and advertising, these products are not regulated in any way. Much like the pills advertised on late night TV, they can say anything they want.
This is straight from the Seachem Stability website Q&A:
I have finished the suggested 7-day dosing, however, my tank is still not fully cycled. Why?
A: Since every tank will cycle differently, it is difficult for us to give an exact time frame as to when your tank will be fully cycled. However, generally most tanks are cycled within 4-6 weeks.
4 to 6 weeks? generally? Isn't that the general time a tank cycles anyway??
To each his own, but I don't buy it.