It would be fun to hear her, but the voice-over was so smooth that I think they hired a professional. That's an aspect of the video that no one had a problem with. Unless Imagine is a pro and has studied acting or something, it might be best to stick with the guy who did it. Think of those late-night TV commercials, where the owner of a company gets on the air to pitch his product. He sounds like an amateur, and he is, because maybe he sells good mattresses or whatever, but he doesn't do a good voice-over.
Imagine, please don't take this wrong. I'm sure you have a lovely voice, but for a number of reasons, I bet SI will opt to stick with the original voice-over.
I hope Imagine will show our comments to her boss or whoever is in charge of making the video and then let us know what was said. I know she thought they'd want to go with it as is, and that's probably a financial concern. However, if they hired a script writer to do the text, and that person allowed the misspelling, they might be able to get that person to absorb the cost of changing that one word on the video (if proofreading the script was in the contract). From what little I know about it, video editing like that (changing then to than) would be fairly simple, so it shouldn't cost much, and the advantages of having everything spelled right would really be enormous, IMHO.