I do understand where you’re coming from, but I also understand the argument that paid backers should receive their devices first and I’m sure there are multiple backers with opinions on both sides of that issue.
I don’t have the knowledge to say just how different the Librem 5 is from its devkit, but it may be possible that it is similar enough that there is no meaningful difference from a development perspective and this is a non issue? Sure it would be preferable to have the actual hardware and not a devkit, but I don’t think that will mean an absolute halt to development either.
Hopefully Purism can ramp up shipping enough that this is ultimately a non-issue… one can hope.