I'm 60% done with such a sheet and believe I can make it to 100%, but have concerns about sharing it as it contains non-free data from the rulebook. I have a hard time imagining anyone making sense of the army builder without the rules, but some might think otherwise.

What's the thoughts on that at mj12games or in the community in general?

Well I've had a chance to read the rules and army builder a few times now and I can see how building an army would seem a daunting task for many.
As an IT-professional I'm always looking for IT shortcuts for doing work and the amy builder obviously should be computerized. I've read that someone was working on a spreadsheet but never brought it to completion. A tool like that would really help bring down the effort required to get started with your own armies. I've started the work and have the weapon builder running.

I know Song of Blades and Heroes and it doesn't compare to defiance at all. It's a simplistic game, very unbalanced and appeals to beer & pretzel players.

One thing that puzzled me most in the Defiance rules was the Exclusive unit rule (p.84).
After going through the trouble of designing units you suddenly have all vehicles marked exclusive along with at least one infantry unit. In addition you only get 1 exclusive choice in a battle regardless of the point value size of it. That seems overly restrictive to me and should have been a % rule instead.