It’s a patch for sure, but serves a much more compatible, search friendly solution to the browser for use in the occasions where iFrame are unavoidable.
One big reason I did this was because I’m an amazon affiliate and for some reason, they insist developers use iFrames for most of their links.
I run the amazon program on a number of sites and have seen improvements since using this type of system.
Once there is a “proper” replacement for iFramed content that is browser friendly and supported, I’ll certainly switch over.