What do you think? I don't think it would make sense, for example to have copies of the seeds of both HW's at both sites because in a $5 wrench attack I could lose everything.
One drawback I see is that if the house burns down I would lose everything I manage with one HW, but well, that risk I also had now, having 100% of the management of my holdings in one site.
It depends on you. I personally have my main cold-storage seeds in encrypted USBs, hidden in different secret locations. One secret location is in my house, another one in my car, another at work, and the last one in my old room in my parents' house. They all look cheap, ordinary USBs, with directories named "My Files" with old useless/random files from work scattered with the encrypted folder nested in another folder with more random files that contains the seeds. The USBs can only be opened in Linux