Why not use international index funds (VXUS, VTSNX) to avoid or hedge against “Space X risk”

I did a deep dive and didn’t notice too much mention of this. But let’s say the equities part of your portfolio is light on international exposure to begin with , and you’re a bit concerned about the Space X IPO, wouldn’t an easy way to address this be to convert part of your domestic index fund to international ? Am I missing something critical or obvious here ?