I don't know, because I don't think it's as simple as it seems.
Although Barcelona is definitely the favorite in this match and by looking at the odds alone it is already visible, but still I think it needs some consideration with 1.41 for Barcelona in this match.
Their problems are still not fully resolved until now on the other hand, we know Betis is also one of the clubs that is always troublesome in every season even though it still cannot be compared to Barcelona but still they will interfere.
I will probably miss this match because even if they win, besides the odds that I don't really like on the other hand I still want to know whether after a week off Barcelona has been able to improve its attack line or not.
It's funny how they call it the FIFA rest, whereas most players don't even get enough time to rest cause they're representing their countries in various competitions lol, anyways I don't think the match is going to be very tough for Barcelona due to the fact that they're playing at home in an environment where they'll be more motivated by ther fans to deliver a good result, also Barca are going to be more dominant in the match which gives them a better chance of winning.
They're the bookies favourite and stand a better chance against betis cause they've got better squad and good stats against them in the past, but my problem is with their attacking line because they play good but their top 9 Lewandowski is still finding it a little tough to get goals, but I hope it gets better after the break.
I don't think your perception is wrong on this, I didn't call the players off fifa but Barcelona and that is true because at the moment La Liga is closed considering the players are defending their respective countries.
As I said before, the favorite is Barcelona and that's a given as their strengths are different, but considering the odds of 1.41 and Barcelona's lack of form in attack that makes me less confident in this match. As for those who want to bet because it will be considered easy I have no problem with that because it is their right and maybe if you want to bet too I will not prohibit it, it's just that for me I will miss this.