Ah - the answer to that has nothing to do with target marketing or audience maturity.
Its MONEY. Like the other German manufacturers (BMW, Mercedes, Porsche) VW/Audi are rolling in cash and have been for some years. Ford and General Motors, on the other hand, are virtually bankrupt having sold off Jaguar, Aston and Land Rover just to pay the bills.
So how do Ford go about making a new hot hatch with 200bhp+? They borrow a 5 pot engine from sister company Volvo and dump it into an existing chassis with the cheapest set up possible (FWD). Then they chip it up (cheap to do) to 280bhp and hope that that headline figure plus the RS badge will sell enough units to keep the creditors at bay. The fact that, like the previous Focus RS, it will be a torqe-steering mess won't bother their accountants or creditors.
How do VW/Audi do it when building the R32/S3 ? Do they get the Golf GTi and just chip it up ? No. They fundamentally change the engine, turbo, intercooler (in the S3) and transmission and change the set up to 4WD knowing (as Ford know but don't have the cash to do anything about it) that this is the most effective way of deploying 200bhp+.
Both companies KNOW how to build performance cars (great Fords of the past were always either RWD or 4WD - not FWD) but only one has the financial means to do it.