Herbert W. Armstrongs Magazine was mailed out FREE for many, many years (The Plain Truth).
How did he do it without charging?
Are we saying Jehovah wouldn't "provide" the means?
Armstrong's literature was paid for by the oppressive tithing system he imposed on his members, demanding as much as 30% of their income to be given to the church. The initial 10% was mandatory. It was submitted directly to headquarters, and one could be disfellowshipped for failing to tithe. The second tithe was for the purpose of attending their "festivals" (parallel to the Jewish holidays, but really more like JW conventions). Any part of the second tithe not spent in actually attending the festivals was to be donated to the church. And the third tithe was collected every three years for "widows and orphans," but subsequent research has shown that it mostly went to pay for Armstrong's opulent lifestyle.
For God to provide the means for any ministry doesn't mean he would drop cash from the sky. People giving donations to a ministry is a completely legitimate and biblical way for it to operate. Most churches operate on such a basis, as do many secular organizations as well. So what if the WTS also solicits donations for their literature? Even though it's printed by slave labor, there are still costs involved that need to be covered. There are a lot of good things to criticize them for, but I don't think this is one of them.