True. And comics and merchandise and so forth.
But what I'm saying is that D&D was based on intricate stories and mastery of details from the start. Whereas Transformers started with just some toys with a stat card and paragraph-long bio on the back of each card.
But Mearl's team has only half-heartedly synthesized the vast D&D legendarium, whereas Hasbro's Transformers team (largely via the "Ask Vector Prime" at the Hasbro website) has lovingly gathered every scrap of
continuity and beautifully shaped it into an intricate story of hundreds of distinct continuities and
continuity families, all within the Transformers Multiverse and
Megaverse (which includes cross-overs with non-Transformers universes, such as GI Joe and Star Wars).
Maybe you're saying that if Mearl's team had a larger budget (like the Transformers department of Hasbro) they could gather and unify the various D&D continuities. But no, that's a cop out. Surely they have enough money to hire somebody like Brian James (author of the Grand History of the Realms) or Echohawk (the master of monster histories here at ENWorld) to gather it all together and synthesize it into an in-house Reference Guide, and publish it as a chronology.