When working in the Chapter 7 Articles you have to look for this statement:
760.3 Other Articles
Circuits and equipment shall comply with 760.3(A) through 760.3(F). Only those sections of Article 300 referenced in this article shall apply to fire alarm systems.
In this case 300.11 is referenced in 760.25 and 760.52(B)so the 300.11 does apply.
As far as 760.7 it doesn't say what the CMP intended. They were trying to prevent you from just laying the cable on top of the ceiling, but the section wording does not really do that. The wording only says you can't prevent the removal of the ceiling tiles. A few fire alarm or any other type of cables would not prevent the removal of the tile. The section should just say that the cables cannot be supported by the tiles or the grid, but it doesn't so now it is a subjective rule as to how many cables can be placed on the tile before it becomes impossible to remove.