Its about the day and time we live in. Its what is happening now. But allot of believers praise God walk only by what they can see hear and feel.
Touching Rev 9 for me I don't read nor does it hint at for me that those are "demons". Now in the spiritual world yes but here it is not what man will see. Like the prince that with stood Gabriel who had to call on Michael. "“But the prince of the kingdom of Persia was withstanding me for twenty-one days; then behold, Michael, one of the chief princes, came to help me, " The prince of the kingdom of Persia? Real here but in the spiritual realm.... that's where the war is and on earth we see the results. Like say Iran or China what do we see in the natural? No demons no fallen angels yet "For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places." That is what rules over them.
But I believe most don't know how to fight. Those that do well family makes fun of them