That would mean the biblical verses that say you can only be saved through jesus and the disciples claims and examples that they have been saved by jesus are false?
Pretty much. The Disciples did not write the Gospels or Book of Acts. The Gospels/Acts were written by 3rd party, anonymous authors, decades after Jesus' death. They were not eyewitnesses, and in many cases do not agree with each other. That is what happens when you have different writers, years apart, that were not actually there, trying to tell the same story. It's called hearsay.
One must also keep in mind that everything in the Bible was written thousands of years ago. They did not have microscopes or telescopes. They did not know about the Americas, Australia, Antarctica, Greenland, Iceland, Pacific islands, etc. When they wrote "the world" or "the earth," they were referring to that which was only known to them. If someone says, "well God knew about those places because He created them," then they forget that God (as Jesus) should have known that medical conditions were not demonic possessions, too.
The problem with many Christians (which I was a traditional one for 30 years) is that they idolize the Bible. They lose focus on the bigger picture (God), and instead focus on trying to prove their positions based off what the Bible says. Since they are not reading the Bible in Koine Greek, they have to rely on a translation that is done by others, and each translation has a copyright because of publishing houses that produce them. In short, people try and prove that their way is the right way, using a holy book that has numerous variations, and is not read in the original language, time period, geographic location or culture. They lose the idioms.