You are missing the point.
Sigma is offering a LEGO piece that one can use to assemble one's own configuration.
Viewfinder and everything else can be added.
They also offer two other sensor LEGOs: one that looks like a previous/heaper gen (fp) and other with high-res 60+ MP sensor ("fp L").
They also offer two other sensor LEGOs: one that looks like a previous/heaper gen (fp) and other with high-res 60+ MP sensor ("fp L").
I like the idea.