Why are you asking about a game you're likely going to see within 2 months ? Lol, it's not like you're going to give up on it just because a reliable guy online told you they are lazing off as they always do.
GameFreak hired A LOT of people and their past two games (USUM and LGPE) were handled by very small teams since the rest of the team was already working on Gen 8, GF knows they can't mess-up this game and, even if they didn't realize that/they weren't able to make a good enough game, Nintendo is certainly overseeing the project, this is hands down Nintendo's biggest game for 2019, it simply can't fail, their sales expectations for this fiscal year will rely heavily on this game, if GameFreak fails Nintendo steps in and has the manpower to finish the game and deliver it without a delay.