That's more or less what I meant (i.e the cost of tooling vs. the saleability of the kit, not the technical feasibility of actually producing the moulds).
The old ex-Matchbox 1/72 Flower-class corvette is still selling very well to both static and RC modellers, despite being a fairly basic and dated kit - so there's definitely a market for subjects like this.
I always thought the combination of the sheer number of parts, large hull mouldings, and the relatively limited market for models this big, meant a kit like this, produced to current standards of detail and accuracy wouldn't be economically feasible (the Revell corvette doesn't really count as it's an old mould acquired from Matchbox, not a new tooling). But Italeri's 1/35 torpedo boats seem to have proved me wrong (they are as large, and have nearly as many parts, as a small warship in 1/72 - in fact the S-100 will be substantially larger than the 1/72 corvette)