On one hand, it would obviously attract lightning, being a tall-ish conducter it would attract it, but cars and the like are said to be (relatively) safe specifically because they direct lightning around you to the ground. I imagine it would be similar to that.
My brain for some reason read that as a “metal gazelle”, and I was very confused as to why somebody would be asking if a metallic recreation of an animal is safe in a storm. Then I was thinking maybe they were talking about “Gazelle”, as in the bicycle company, but that made even less sense.
It’s only now I realised IT’S A GAZEBO, THE WEIRD BUILDING THING IN PARKS