We need to remember what the purpose of the Watch Tower Society is; to announce Jehovah's Kingdom. They believe that kingdom arrived in 1914. Why on earth would they want to remind people of that, nearly 100 years after the event?
Also, the Watch Tower Society has chosen to eschew much of what the Bible teaches about Christ and the Holy Spirit and the effect a relationship with has on your life. So, they can't fill the magazine with stuff like that.
They're pretty much stuck pedaling the same eschatological nonsense that's been embarrassing them for decades.