1Th 4:17 Then we which are alive [and] remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
This is not the Rapture that many are hoping for I fear
I believe you're right. Many falsely anticipate a deliverance from any testing....an understandable but carnal expectation.
The true danger is when the testing comes, and they've not been raptured, and fear they've been 'left behind' (because of a false understanding of what and when the rapture is), they'll not see it as God's testing and refining and an opportunity to exalt God by standing firm, but question their faith, God's protection, their salvation, and the love of many more will grow colder still, possibly to the extent they may even take the mark.