You're over complicating things DJ6. It is a wet-lease, pure and simple.
No different to what another Moldovan carrier (Fly One) is doing. All of their flights are operated by wet-leased aircraft of Jordan Aviation, SkyUp and Fly One's Romanian subsidiary.
And, in the year or two before their demise, the majority of Air Moldova's flights to Stansted were operated by a wet-leased Romanian aircraft of Aerro Direkt.
You cannot compare this situation with the proposed Nice Air/HiFly services as there was no wet-lease involved in that arrangement.