Well, it IS bugfixes, balancing, now a fair heap of new content, and original musical score, and tileset support with an official tileset being created also looking pretty hopeful at this point---a fair accomplishment for 4 guys even if it took years and all sorts of strange detours to get here.
Honestly, aside from the money aspect, it raises a bit as to what a "team" can affect in terms of the Roguelike world as opposed to the classic individual or the loose "group" such that is common with some of the open source ones that are at least somewhat actively maintained. There are certainly others currently and some in the past----but really it isn't a common expectation.