It's not a trend, we have thirty plus years of data that tells us that wings and guards create the best offense.
History also tells us that just about every single franchise big man not cut short by injury had gone to at least one conference final before they retire.
Dirk, Webber, Boozer, Duncan, Shaq, David Robinson, Mumtombo, Ben Wallace, Rasheed Wallace, Hakeem, Ewing, Pau, Love, Bosh, Dwight Howard, Amare Stoudemire, KG; I'm sure I forgot a few. The NBA is still a league that size matters.
History also tells us that a team's chances of drafting an elite big man goes down considerably after the first three pick, much lower than drafting an elite guard or wing. The Kings may not have another chance to draft this high again and on a big man so talented. They will still have plenty of chances to draft a good wing player from 2020 and on provided they actually know how to scout (debatable).