In fact, the concept most commonly associated with the search for truth in the Writings of Baha'u'llah is that of detachment. Later in that same book, in the portion known as the Tablet of the True Seeker, we are warned that we must beware that our own loves and hates do not lead us astray in our search. I cannot find any basis in the Baha'i Writings for any sort of restriction whatsoever to any kind of investigation except those that have to do with the moral qualities of the seeker. Now the mystic and the scientist may very well find each other incomprehensible, but that doesn't really give either the right to say that what the other discovers is invalid. They are simply operating in different spheres.
People have different capacities and access to different tools.
Different methods of inquiry are suitable to different types of truth to be found. It could be fairly said that I, as a literate person, have a greater opportunity for understanding the Writings than an illiterate person, but that doesn't mean I can discount the search of those illiterate Baha'is in developing countries. Likewise, the person who can read the texts in the original Arabic and Persian is inevitably going to have a better understanding of them than I do, but that does not invalidate my experience. And besides not looking down on those who have less knowledge than we do, we must also resist the temptation to defend ourselves by doubting the experience of those who have greater skills and knowledge as well. More than one person has tried to explain this to me.