First, the rapture is not "protestant" but an ancient belief of the early Church. Please check what St Ephraem the Syrian said. Seems he "copied" the modern evangelical theories, in his 4th century. There are others.
Then, the Great Warning is indeed abundantly present in catholic seers, but it is not found in the Bible, unlike the Rapture that has many references including the very word in Latin, in Thessalonians and in Revelation 12.
If we are to believe all those catholic modern seers, then we should ask some questions and try to find their answers, to fit what they say in the picture from the Bible. Unfortunately, in most cases the seers are reluctant to tell us more than they have already said.
Why for example, some modern catholic seers speak also of a rapture? And why others conceal most of their prophecies in "secrets"? If you have a secret, there could be everything inside. Including the rapture, the antichrist, and so on.
The seers tell us that in the Great Warning we will see ourselves as God sees us. Good, but what's next? What will we do on Day 2 after the GW when we will make a good confession (the best case scenario)? How will we be saved from the Antichrist that is rising? John Leary and others give answers, with the introduction of the Refuges. It is again not a new doctrine, it is what the ancient church also believed. The refuges are places outside the reach of the Antichrist. Whether in the wilderness (ancient), whether in supernaturally protected domes in holy places (modern), or may be even outside this planet. Those in the refuges wouldn't be able to communicate with those outside, and vice versus. They will live in self-sustainable areas.
Also in the Great Warning it is said we will experience the destiny of heaven, purgatory or hell, should we die at that moment, but we will be given a second chance. How about those who are for heaven? Why should they come back to Earth and experience the persecution of the Antichrist? Isn't it better for them to stay where they are - Heaven or another place outside of the Antichrist's reach, if they anyway deserve the heaven at that moment? Why should God risk them to the temptation? Remember the Philadelphia church in Revelation that alone is saved from the great temptation that will come upon the entire world. Is it possible then the Great Warning itself to be a rapture for some people?
We don't say there isn't such thing as Great Warning (because it would mean to assume all those seers are false or deluded via microwaves, and we know that at least some are authentic). But we think that under that acceptable term is hidden much more, that otherwise would have been forbidden. We believe the seers tell us only a limited picture, and we always should check the Bible whether it corresponds to it, especially the prophecies of Revelation and Daniel. The technology exists to alter the mind and to have false visions. It doesn't mean all seers are influenced, but be careful when there are apparently fake apparitions. Like the so called "holy love" that are given broad platform and who don't warn the people of anything of the above, like antichrist or refuges. The ideal way for the coming great delusion under the disguise of a fervent "catholicism" that even "opposes" to a certain limited extend the mainstream line, and thus becoming "attractive" for the unsatisfied devotees who are indeed fervent, but...not thinking with their own heads.
It is not strange therefore we stopped publishing most of the messages. We are no more sure who is who. We expect the promises of the Bible, and if there are messages that support that, they are more than welcome to be believed.