This skin is known as "Peau (de) Porc" "Pigskin" or "Pecari", and all terms are used by Hermès SA but sometimes refers to different skins. Historically, Hermès produced bags and SLGs in Pecari (starting in the 20's) which they called Pigskin / Peau de Porc...it was discontinued sometimes in the late 90's / early 2000's -> this leather was obtained from the Tayassuidae family of animals (or Pecaris)
In 2018, Hermès resumed the production of Peau de Porc, except it's not made from the same animal anymore : they found a farm in Japan that raises a subfamily of Suidae (a type of Wild Boar if I understood correctly) that is very close to Pecari, so technically, yes, current pigskin has only been in production since 2018...
Differences beetween a 1984 "Pecari/Peau de Porc" leather (bottom) and 2018 Peau de Porc (top)
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