Unearthed buried armour. C2 or C3

Hi Guys

On a domestic EICR i have come across a 3 core swa cable that loops to various points down the garden where the armour has just been cut back so obviously the armour itself is not earthed. The cable is buried.  I have initially coded it as a C2 but am doubting myself.  Is it immediately dangerous or is a C3 more appropriate.  The installation is TT with 30m/a rcd protection.

Thoughts please

Gary