That's a function of Disney identifying who the character is because the put in a franchise that while popular, not everyone is familiar with. The Blackbeard projection also says things like, "So says I, Blackbeard".
I think Davy Jones was a better villain, that's why I like him better. He was in two movies and allowed viewers to get emotionally invested in his character. There was no connection to Blackbeard - he was the weakest part of On Stranger Tides.
The thing is, the effect itself is well done but the dialogue and relevance of the character involved is questionable. I miss the skull and cross bones before the drop, and that's why I think they should use that same skull and cross bones on the waterfall projection. If you watch the Pirates movies on Blu Ray, they have the skull and cross bones, and I believe on one of them, he makes his "appearance" on the menu emerging through water.