i.e. one of the transportees not making it 'Cupcake knew the risks...'
Ah, but Cupcake/Hendorff is needed for the next movie.
If the experiment had caused a power drain to the ship and fried the circuits in the relay stations I probably wouldn't have as much of a problem with it.
And the "Tribbles" comic duology is only half done, so far. They may well be setting up a transwarp-beaming long-range transporter experiment failure for the next issue, or indeed the next movie.