It's not either/or. They have run out of ideas and they have run out of money. The evidence is quite clear.
I think they're cutting back on magazines, not to save money, but because nobody can think of anything to put in them.
True, but they are also clearly extremely short of money and this is why they are not even printing the new content that they are still producing.
For example they produced a new Bible stories book this year, with new pictures and some new/reworked content. Yet having produced this new book they didn't even hand out copies at the convention. It is download only, unless publishers make a special request, in which case a copy will be sent "when available". This is clearly an issue to do with the cost of printing, because the writing and editing had already been done.
The fact that they've run out of ideas is demonstrated by the main "doctrinal" announcement of the meeting which was simply a return of the old "vindication of Jehovah's name", a teaching they were crazy to dump in the first place. And was only scrapped to keep Karl Klein happy, so the story goes.
Running out of money may be connected to running out of ideas in another important way. It's a well known facet of psychology that material difficulty adversely affects cognitive and creative abilities. In other words the stress of money trouble is probably occupying so much of their thoughts that it's difficult to focus on other things, such as producing coherent and interesting content for their literature.