Bug#883020: Debian Bug Report: libguestfs0 should not depend on btrfs-progs

[H.-Dirk Schmitt]

Package: libguestfs0
Version: 1.28.1 (and newer)

libguestfs0 should not depend on btrfs-progs. 
There are systems which explicitly exclude btrfs from setup.

Is there a hard reason that a "Recommends" is not enough ?