energy requirements for this task don’t change (much) because you’re using a different machine to perform the task… unless you also change the thermal capacity of water (let us know if you solve that one…).
if you simply lie about the temperature, what would you expect your AC to do?!?
(hint: this is what Coolbot’s do, and what Overriding Lower Set Limit on Mini Split Heat Pump is about)
It will continue to COOL…which will make your humidity problem worse.
the point of the video is that by ADDING heat, you can then COOL & thus dehumidify with your mini-split.
A heater is cheaper than a dehume, simply because a dehume is essentially a heater and AC in one unit (and you already HAVE and AC…).
(HEAT generation in this example is the compressor…)