Never heard of such a thing...
If that was true, neither you nor I have a legitimate religion...
I don't what scholars you are referring to but it's going quite a stretch to call them 'scholars'...
The apostles and original disciples wrote the NT scriptures...I wouldn't follow any one or any religion that claims otherwise...
There is no way of guaranteeing the fidelity of transmission of written words, without undue influence, in any way possible. Religion was the key to controlling the masses. To tell me that it was not abused by the people 2000 years ago, to control other people, would be ridiculous.
All religious texts, everywhere on the planet, are all works of man. The Bible was compiles several years after this supposed Christ was supposedly crucified. Ditto with the Quran; the Torah is even older, and even more unreliable in terms of authenticity. Likewise, the Hindu texts.
All, works of Man. The papacy is a seat of power. Once so powerful, it carved up the world, for rival states. It sold salvation, and sin, for monetary gains. The Bible has had several books added to, removed from, or altered, throughout its history. It has always been under the control of a fraction of the population, at a time when books and written matter, were the privilege of the even fewer.
People can't trust with absolute certainty, the authenticity of the things a year ago, in spite of all the tools available at their disposal today, and yet, many billions are prepared to put their lives at stake, for something made up eons ago. Such is the folly of man.