On the one hand, installing a complete disc image using a package manager has just become a realistic proposition. This had always been one of my objectives - you can just about boot a system using my half-finished !Boot and !System applications - and whatever you think about the licence, it is something we can live with in this context.
There will also be benefits to developments such as my threading module - it is much easier to fix bugs if you can see what you are trying to interact with.
OTOH, this makes it rather less likely that we will ever have a usable version of RISC OS under a real Open Source licence, or which targets other processors.
(I've been preparing another small contribution to the above - it's a free implementation of the filer module and is in the RiscPkg source repository.)
On balance though, a welcome development and one that will benefit my work significantly.