Wow! People were that upset about Grant, huh? I'm not sure where to even begin on that.
It was revealed with further clarification that he would not appear in the first film. Since they were planning on doing two or three, I wouldn't see the need to have to wedge him into the first film either. Character recognition is always a cheap shill for fans, so the fact that they were concerned about making the story flow without too many convoluted details gave me the impression they were trying to make something of quality. Warren was being cynical about wedging a pirate-character into a landlocked setting... as they were concerned about making something tight, which is probably the last thing we should expect from any other VG adaptation.
Why put all your eggs in one basket as well? What would they have focussed on in those two other films? With the 'meet the characters along the way' style of CV3, it's perfectly reasonable that one of the characters would be... you know, met along the way. I've always wondered why people were so upset about his exclusion from (what would be) the first film.
Additionally, I guess you'll have to pardon my ignorance, but I thought Grant was a pirate as well. However, I think this should invalidate any silly remarks about how they 'should play the game' first. Because I've played the game, many times. I could tell you about how Sypha Belnades is actually spelled 'Syfa Velnumdes' in-game, and I have the sound test code memorized.

Yet somehow it escaped me that he wasn't a pirate. I know that his family were villagers killed by Dracula and / or Dracula's hordes. And that he possible came from a family that rivaled the Dracula royalty as well (based
only on the name, not anything actually in-game or known canon). So, if someone can clarify his non-pirateness, that would be appreciated.
Perhaps I'm coming from a completely different perspective on an appreciation for the series, but I honestly thought that team and their mindset going in (from what we heard from the blog) was almost a *best* case scenario for a Castlevania adaptation. You had conscience people with a history of great work behind them. If the most banal complaints about the lack of Grant in the first film are enough for people to hope doom upon the project, good luck with the live action movie!