Unrelated to my previous comment so new comment:
The Fourth Protocol Ever to Do This
If 3 other chains have done that wouldn't it be faster/easier/cheaper/safer to fork them? I know THORchain has had multiple hacks, took them years to get where they are and being the fourth doesn't give it very good odds. Wouldn't forking keeping HBD as settlement be an alternative? Why build from scratch? I ask that because I am unfamiliar with all the development behind Magi and VSC, but why build from scratch rather than forking?
Those other chains seem to have already solved the distributed key generation, the multi-round signing ceremonies, the key rotation and all in and in between that. Their chains are open source, and are being tested by real adversaries with real (and aA LOT OF)money on the line, if there are vulnerabilities or bottlenecks on magi it will take years before there is enough liquidity to make it worth attacking it not because they would not have found it but because attackers find it and wait for the "jackpot" to grow large enough.
Stupid of me and clever if Magi is already built off a fork of something already existing and tested, but if it is built from scratch then it raises yet more risks for the business.