Video on the Book of Joel - A New Thought of Understanding?

[Bible Speaks]

A subtle change of understanding
We just received the video about Joel's book on broadcasting. And I have noticed a remarkable, but very little point of understanding. Let's see

Joel's book says:
(Joel 1:4) what the caterpillar left, the lobster ate it; and what left the lobster, the lobster crawling, without wings, ate it; and what the lobster crawling, without wings, has left , the cockroach ate it.

For many years, even since Rutherford, the understanding of the slave has been the following:
Watchtower 1998
How vividly describes this prophecy to the current symbolic locust army! Today, the army of locusts of the Lord also march forward. There are no "Wall" of opposition. Instead of compromising their integrity to God, they are willing to die, like the thousands of witnesses who 'fell between the shells' for refusing to acclaim Hitler during the Nazi regime in Germany.
The current army of locusts gives a comprehensive testimony in "the city" of Christianity (Joel 2:9). It does it in the whole world. It still overcomes all obstacles, enters millions of homes, tackles people on the streets, talks to them on the phone and gets in touch with them for every possible means by declaring the message of the Lord. Indeed, he has distributed billions of biblical publications, and will distribute many more in his incessant ministry, which is made publicly and home at home (Acts 20:20, 21).
Watchtower 2008
The Prophet Joel Illustrated the work of evangelize of Christians with a devastating insect infestation that included locusts (Joel 1:4). Advancing as an army, locusts overcome obstacles, enter houses and devour everything they find in their path (read Joel 2:2, 7-9). This is a very graphic description of the persistent and comprehensive preaching that the people of God do today.

But by watching the video about Joel's book, we noticed two things:
First, he makes a meticulous description of the locusts, but not a word of his modern application.
Second, about the 1:50th minute, with the image of the locusts on the screen, it is said: "look at how bad it is to those who oppose God". and nothing more.

It is a clear sign that the previous interpretation is no longer maintained.

https://tv.jw.org/#en/mediaitems/LatestVideos/pub-nwtsv_290_VIDEO