I do not believe the request is unreasonable. Had it been me (I do have secular magazines around the house) and I had guests over, I would have understood the request to put such magazines out of sight*, even if I don’t mind having them around the house.
The Wolf
* Note that this goes for magazines. Asking someone to remove pictures of their kids from their walls (for example) because you think pictures of women are untznius is not reasonable.