I believe the letter has more to do with the spin-
Post# of 56323
I'm sure it is all very complicated and HC is requesting more information before the actual spin-off happens. Hence the 20 day timeline.
Bottom line is the letter might be an indicator of being very close to receiving the license and spin-off announcement. That's why the PR says CEN is "pleased" that HC is requesting more information. In other words, CEN is pleased we are in the final stretch.
IMO