There's also the whole extreme time crunch aspect to this thing. The court date is in what, less than a week? This GoFundMe is likely one of the most expeditious way of getting enough money into their account to cover the initial legal fees. Moreso than other crowdfunding, webstore sales, bundle...
Not arguing that this isn't a good deal, but you're treating it as if Free League is barely making any money at all on those $22.80 dice sets, when in fact they are almost pure profit.
Are these at least shrinkwrapped or physically bundled together in some way? I can see a lot of stores separating them and distributing them as individual items, which obviously doesn't really help anyone.
The print book/PDF has some decent maps that make the layout fairly easy to understand (isometric and not gridded, but still useful). Did they not include those in the DDB version?