“Do they not reflect upon the Qur’an, or are there locks upon their hearts?”
Quran 47:24

What is the point of meditating upon the Quran, if it is not to form your own opinion or to check someone else’s opinion ?
One should be sincere in seeking its truths to the best of their ability, though.
The Quran has quoted many opinions:

“They said, “Will You place upon it one who causes corruption therein and sheds blood, while we declare Your praise and sanctify You?” Quran 2:30

“He said, “I am better than him. You created me from fire and created him from clay.”” Quran 7:12

These are opinions.
They stated their opinions.
They were allowed to state their opinion and it was also recorded forever.
They were not told to ‘shut their mouth’.
Maybe they do not have a mouth ?!

I do not understand the following article:
can-you-interpret-quran-based-on-personal-opinion
Maybe the writer should reconsider his opinion.

The Quran was recited to the public.
It has always been in the public domain.
Generations memorised it and passed it to the next generations till it reached our time.
It was not and never has been a secret book carried forth by a secret society.
Furthermore, the exegesis of the Quran is the collection of opinions on its exact meaning.
Those opinions do stand for as long as they are not proven false.
It does not matter when the exegesis was written.
A Tahrir wa Tanwir is an exegesis written by AShaykh ATahar Bin Ashour in our time.
It took him 40 years to write.
For certain, it is a monumental work.

What matters is that their opinion is based on sound proofs.
Once an opinion has been proven wrong, it is to be dismissed and relegated to the books of history.

“And they say, “None will enter Paradise except one who is a Jew or a Christian.” That is [merely] their wishful thinking, Say, “Produce your proof, if you should be truthful.”” Quran 2:111

The Quran is coded using the Arabic language.
Hence, one should be mindful of the bias in its translations when forming opinions.
The best is to have direct access by studying the Arabic language.

We are not God.
We are bound to err sometimes.
Hence we need updating with time.