Welcome to CC. A post like this, so early, isn't going to get you anywhere. No one claims to be police, but they do comment on those who waltz in here with an attitude.
What you paid for is exactly what RD told you, a cruise of xx number of days. Your speculation, and how you feel about itinerary changes, means nothing.
At the risk of being called "nasty", have you checked with your travel insurance company? There may be some wiggle room in the details given this somewhat unique situation. Unlikely, but worth a shot, right?
Are you asking to just "get in", or get a seat? Those venues, Syd's, Cavern Club, etc., are the same on every ship. If you're not there 30-45 min prior, you're not getting a seat. If you just want to get in, we've found it rare that you can't.
Not to keep piling on, but as you can see, few do. And what business sense would it make for NCL to cancel a cruise if they can find an alternative? That would be ludicrous.
No, they aren't all wrong. I read reviews to look for common threads and things to expect. I wouldn't change anything based on reviews, but just be prepared.
Breakaway does seem to be getting pounded lately. Personally, I choose the Breakaway Plus class ships, and would go for the smaller classes if I want something different.
Or, they've been on 658 cruises, so blah, blah, blah.
The 1-star reviews seem to be nothing more than entitled Karens without a clue. The same ones who are at Guest Services complaining that it's raining in Alaska, and they want a refund because their cruise is ruined!