It is both presumptuous and naive to criticize so-called “scientorahlogists”.
The most important halachic decisions today depend on scientific knowledge. For example, high tech on shabbos (hotels, elevators, etc…), food chemistry in kashrus,shmittah, trumos u’maasros, organ donation, determination of death, infertility, and the list goes on.
Any posek worth his salt must be in contact with scientists, unless he is one himself. Inorganic and organic chemistry, physics, electricity and magnetism, biotechnology, and more all form the basis upon which modern day psak stands. The posek relies on the scientist for accurate and truthful information before paskening, and he knows there’s no other way.
So too with the science and history of marror vis a vis horseradish. A serious ben torah should read up on it and many other topics. He will find not only that many of these agricultural scientists are frum, but they know how to learn too. And in their field, no one understands the sugyas better than them.
There’s a whole scientific world out there, and it is indispensable to modern halachic decision-making. Get to know it, it’s part of Torah.