I know, lately S8 gives us so many curve balls, it cause so many veteran players quit coz they can't keep up. But it depends on how u respond, really.. did u see it as a challenge or not..
For me, doing goal give me purpose to play. Something to look forward to. Either for new recipe (to earn gems) or to get new decor (but let's be real, there's no enough space to display all decor).
Some player cook high XP recipe (coz they're aiming for level 100). Some mostly cook red velvet for the money, etc. Different player, different purpose.
What I'm trying to say is, play however u want to play it. Whatever u comfortable with. U can do/skip goal or do goal just to get new recipe & not finish it. But it's good to have something to look forward to, right??