Hi Greg.
Sorry to hear about the crack. I'm so glad the CITES reg's were reversed fairly quickly. I have no experience with the engineered stuff, but like you have read some no-so-great comments about it.
Despite being worked on already, it might be worth talking to Adam if the kit was supposed to be real rosewood for domestic sales. He's a very reasonable dude!

As far as a fix, I agree CA is the way to go. This would be a perfect job for Stew-Mac's tinted CA, but probably cost prohibitive atm with exchange rates in the toilet.

You can do it with clear and it will probably come up reasonably unnoticeable.
I would wick a bit of thin in it first, let it dry then do a sort of drop fill with a medium viscosity.
Run enough medium CA along the crack that it sits proud above the fretboard. Leave to dry, then scrape it flat with a fresh safety razor blade, followed by sanding with a light grit paper 600, then 1200 and buff with steel wool of synthetic pad. Once the the fretboard is conditioned, sanded area should disappear.