Very nice preliminary results. I'm quite interested in seeing how things develop. At what point will you be transferring the water sprouted seeds to media?
Back in the late 1980's, while I was germinating various CP seeds by in vitro culture. I had pre-soaked some Byblis liniflora seed in hot water (for about 12 hours), then as I poured them onto a piece of filter paper, folded into a funnel, I noticed that a little bit of dark purple pigment was leaching out of the seeds and into the filter paper. My next step was to rinse them with a bleach solution (to surface sterilize them before transferring them to sterile media). So, I watched carefully as I began adding the bleach. I think I expected the purple pigment to disappear as it was contacted by the bleach, but I was surprised that the bleach seemed to only help the pigment to move from the seeds (testa - seed coats) to the filter paper, and the seeds kept getting lighter, as the filter paper darkened with the migrating purple pigment. Eventually, the testa became translucent. I then transferred the seed to a fresh, sterile, filter paper, and rinsed them with sterilized water, to remove any bleach residue, before placing them on the surface of agar solidified, 1/2 strength orchid germination media.
I thought I might have killed these seed, but kept my usual close watch over them. I was pleasantly surprised when they all began germinating within just a few hours (noted by the radical emerging from the seed). What you have reported in your experiment.
I know that other species in the Byblis genus can be difficult to germinate, due to intrinsic germination inhibitors in their testa, so I've always wondered if this same technique, might be effective with them, too. Hopefully someday someone will be able to test that hypothesis.