I'm not disagreeing with your stance but if you think there is no justification for the approach they're taking, why do you think they're doing it that way?
Like you said in your earlier post, it’s cheaper and easier to have dedicated facilities for each use.
If solar panels are being built on their own, their supports don’t need to be tall enough for a vehicle to fit under, or strong enough to withstand a vehicle impact. Building structures don’t need to be modified to support the additional roof load. Maintenance of the solar panels doesn’t have to be coordinated with the operations of a theme park, and maintenance of the park facilities doesn’t have to be coordinated with the solar company. It’s just easier and cheaper for everybody.
This is a business decision, to monetize land that wouldn’t otherwise provide any direct value (though there is plenty to be said for the value provided by the visual and physical separation of the various parts of WDW, when compared to Disney’s other resorts). While I don’t necessarily agree with that logic, I certainly understand it.
But to announce it on Earth Day, as some sort of environmentally friendly initiative, is a little disingenuous when it results in unnecessary deforestation of natural areas. Having separate facilities only furthers the sprawl that got us into this mess in the first place, from destroying natural habitats, to disrupting stormwater runoff, to additional transportation costs and emissions to reach far-flung areas.
Jiminy Cricket can remind us to reduce, reuse, and recycle, but that only does so much good if Disney has already paved over the land. It’s exactly what the ironically self-unaware Circle of Life movie at the Land pavilion preached to its audiences, with the destruction of natural wetlands to build a vacation resort causing environmental impacts that the narrow-focused developer didn’t foresee.
Granted, we still don’t know for sure yet where these new solar panels are going, and they may very well be placed above existing impermeable surfaces around the resort. But if recent experience is any indicator, they’re going to take the easiest approach to make a quick buck, whether that is what’s best for the environment or not