I mean its fair to say that its deliberately on the nose. However, I would argue that despite being definitionally correct, Palantir still represents a misinterpretation by discarding the works in their whole. I brought it up because postmodern does correctly imply a reaction to what is "modern", but its also a body of work in its own right.

This is not to say that Tolkien's authorial intent is final, nor necessarily discernible, but we are obligated to examine the palantirs' presentation as not just a passive object with certain, defined qualities, but as devices that have their own consequential histories within the narrative. Thiel naming his company after a tool presented textually as fallible, misleading, and myopic (in addition to its obvious power) with ostensibly no desire to attach such connotations to the company requires, in my mind, at least a superficial reading. We can even disregard the fact that these were mostly tools for an evil opposed by Tolkien, and not make the (valid) argument that their presentation within the text is could be considered direct argument in opposition to their creation. I personally think that to build a company and name it after a work that argues against that company's mission/purpose requires misinterpretation of the reference material, both in terms of poor comprehension of metaphor and as a poor response to the text and the body of discourse that surrounds and infuses it.