I've seen this movie when it premiered and I must say that although Iagree with almost all of the points you have made (I can't deny the truth, I still think that it is one of the best movies I've seen.
yes- Jack became a main character and had to start doing boring stuff, but the boring stuff he did was nearly always done in an hilarious way, even the dialouges that could have been dull were givven a touch to make them bearable (*spoiler-like when he says eh has feelings for Angelica, they don't make it boring, they added something funy in it to keep it funny)
yes- Blackbeard has unexplained powers matching Davy Jones, but what would be the alternative? having the major bad guy just be a very strong normal guy with a sowrd in an action-fantasy movie? he is the main villian, they needed to keep it interesting, thats why they choose one of the most noturious pirates known and remade him.
yes- jack's relationship with Angelica is also kept in the darkness, but I thought you wanted to avoid boring boring hero dialouge. They made it mysterious and interesting and almost always-funny (spoiler- like when she asked "what were you even doing in a spanish monastry?" and he answered-"I mistoke it for a brithel, honest mistake." I don't know about other people, but it kept me interested and laughing-never bored.
yes- they pretend that all the other movies never exicted, but not entirely, they give the bit of needed information neceserry to help the viewer know what happened, but make way to make a new story-is that a bad thing? to clear the way for a fresh story.
yes- a lot of the movie is about fetch quests- but what would be the alternative? they sail to an island, walk a copel miles, find the fountain and become immortal? that would suck, right? and thw fetch quests aren't as bad as they sound-(*spoiler-the mermaid quest was amazing both in the presentation, execution, graphics, setting, music and acting and the mermaids felt like actual mermaids(they gave me the freaks))
no- I disagree with you about the fotage, I think it was amazing, but maybe that just my opinion. I loved especially the fottage in the chase in London.
yes- the priest's character was...well-stupid
all in all I think this is a great movie, the best POTC yet (to my opinion) and I highly recommend it