The movies trump any other sources when making statements, and did you not read
I did read that but the fact that they're basing the size of it off the interior scene of the hangar seems to be taking this whole thing too far. I really don't think Lucas or any other people who made the movie really thought to scale the hangar bay to what they thought would be the actual size of the ship. I think the size of the bay is merely ascetic and used to make the movie.
Now the part where the talk about the ILM models I completely agree with. They probably used the same scale for the ships because they were in the same frame of the star destroyers, and using a different scale would make no sense.
Both Calamarian warship models constructed by ILM are believed to have been 2.44m long. If the scale is the same then both of the Calamarian cruisers may be about 1512.8m long.
So that puts it at about 100m less than an ISD. I agree with that for the winged Cruiser (or smaller than that), and I do agree that Home One is bigger than an ISD, but not what they give based of the hangar scene. They give it at 3-4km, which is 1.8 - 2.5 times larger than an ISD. I don't think its more than 2. I also agree with some theories that every Mon Calamari Cruiser is different in length.
Also, using the X-Wing in the lower left of the hangar bay, the width of it would only be 60-70m, not the size of a Corellian corvette as they claim. Based on that, Home One would be around 1900m, which seems
much more accurate.