Sorry but Bergger's Forte-manufactured products were absolutely not the same as the products they produced while the Guilleminot factory was still around. I am 100% positive that Bergger BRF 200 was nothing more than Fortepan 200 - which existed for quite some time before it wore a Bergger label. They are one and the same; I've got about 150 rolls of 120 experience with both BRF and Fortepan 200 that certainly backs that up. And BPFB-18 FILM was not a Bergger emulsion, but one designed by Filmotec of Germany.
But I do share your opinion Fortezo and Polywarmtone were the only true warm-toned graded and VC papers on the market - regardless of whether they wore the Bergger or Forte labels.
As to whether Ilford is stupid - you are missing the point that Ilford MUST run their production infrastructure at a certain capacity or it cannot be proftitable. It's good news for Ilford regardless...but whether we are truly getting Bergger products cannot be answered until they actually hit the market.