If society would buy in to solar in general then larger grid scale installations like these would make much more sense than distributed panels on housing. There are a lot of roofs to put solar panels on, but there are a lot more efficient implementations.

Grid scale installations are significantly cheaper to maintain/install, can actually be installed in optimized geometries and stop people getting all pissy about curb appeal.

I would be great if people could buy a few hundred square feet of solar panels in a floating solar farm rather than putting solar on a roof.

This is definitely not to say that adding solar to a roof is bad, it is just suboptimal.