The FX2 makes a lot more sense than people give it credit for.
If you actually need open gate, internal RAW, 4K120 or the stacked sensor, then sure: FX5.
If you don't, you're paying nearly another $2K for features you may never use.
FX2 gives you full frame, 4K60, S-Log3, proper AF and an EVF already built in. For a lot of jobs that's enough.
Different job. Different tool.