I'm not quite sure why you are so invested in these. My suspicion is the following will happen with 25 of these taken at once (a combination of several things):
1. A protracted death - SN usually results in a loss of consciousness in 10-20 minutes. Even if everything works as intended, these will not all dissolve at the exact same time. This extends time to unconsciousness (and all the negative side effects) from 10 minutes to 3-5 hours!
2. MASSIVE VOMITING/Dry heaving - the mechanisms of vomiting are complex and not simply because something "bad" is in your stomach. Just think of chemotherapeutic agents and massive vomiting. These are almost never given by mouth. The idea that no nausea will occur with these capsules is FALSE.
3. Failures - failures both due to the fact people will panic at having awful symptoms for hours and failures due to inconsistent absorption.
4. Increased pain - without going in to too much detail, certain conditions, such as sickle cell anemia can be extremely painful due to reduced oxygen to tissues. Why then is SN not regarded as painful? The answer is because the brain is exceptionally sensitive to oxygen deprivation, far more so than other tissues. In short, one is dead before oxygen deprivation starts affecting other tissues. However, if the process is substantially slowed down by hours, I suspect it will start to become significantly more painful, as blood flow redistribution will heavily favor the cns over other tissues
I will say if your fear of taking SN in water is motivated by not wanting to drink something that tastes bad, then either bear it or explore other methods. If it is fear of vomiting, this won't prevent that. If it is fear of failure due to vomiting, redosing Is always possible, and most cases result in vomiting in the baseline yet still are successes, even with vomiting.