I can excuse gen 1-3 and gen 2-3 lore having pretty much no connection because the legendaries had nothing to do with the story in Kanto and Johto but Hoenn remake actually had some ties with Kalos with the nature energy that feeds Groudon and Kyogre being the same energy that creates megastones and the Kalos war shit and gen 9 has some nice connections with gen 5 even when BW didn't even got remade for gen 9 so it really highlights how shit gen 8 was, I can't think of a single connection Galar had with gen 4, not even the new regis since the regis were originally introduced in Hoenn even if their leader was later added in Sinnoh
Worst offender is pic related. Looks pretty much like the sky when a pokemon dynamaxes it's basically asking for an easy Eternatus connection but nah it's just a dark sky lmao, gen 4 and 8 really have zero in common