But they are currently struggling with the Mormon church which owns 600,000 acres that butts up against where they want to lay new track between Orlando and Cocoa. Church wants an environmental impact study which could delay the project by years - or some $$$.
It's slightly more complicated than that. According to
This Orlando Sentinel article, there's a legal encumbrance stemming from the fact that the church gave some of their Deseret Ranch property to the expressway authority to build the BeachLine in that area, with the stipulation that it be used for a limited access toll road. Now, FEC wants to run train tracks alongside the BeachLine and has asked the expressway authority for permission to build in the right of way. The expressway authority doesn't believe it can grant that right since that doesn't really abide by the conditions under which the land was granted to them. So, they've probably told the FEC to take it up with the ranch.
Now, roughly at the same time, FDOT has started the process of doing studies on long-term development of the Tampa-Orlando "super corridor". That impacts the ranch and the church as a major landowner in that region, so the church is looking to the outcome of that planning process to help them figure out how they're going to be able to use their land in the future. For whatever reason, the church
has asked the state to consider the FEC route in that planning process. I have no idea whether that's really necessary or if the two decisions could be made separately or if one really depends on the outcome of the other. Nor would I attempt to guess at the church's motivation in including the FEC project in the master study. However, the church does appear to have some legal right to dictate the use of the land that FEC wants to build on, so that makes them different than your usual NIMBY complainers.
(Also, the news articles all say 300,000 acres, not 600,000. Still a lot of land, though.)