Let's be clear, if they uphold this, none of these players will be playing for Brazil again this season unless there's a change in covid rules.
Let's just think about what is required if you wanted Ederson or Jesus to play for them. So AFAIK, people arriving from the UK into Brazil have to isolate for 10 days (although I'm sure they waive the rules for footballers, because as we all know, they can't get covid and winning a football match is far more important anyway), and then vice-versa people have to isolate for 2 weeks.
So to arrive in time for the match, assuming you want at least one training session, our players would have to leave Manchester on 23rd August for Brazil's game on 3rd September. They would then fly back on 11th September and would have to isolate until the 25th. So in order for our players to play for their country, they would have to miss the following matches:
28th Aug vs. Arsenal
11th September vs Leicester
16th September vs RB Leipzig
18th September vs Southampton
22nd September vs Wycombe
25th September vs Chelsea
And then Brazil's next game is on the 7th, 10th and 14th October, so to arrive there in time and isolate for 10 days, the players would have to travel out on 26th September, arriving back from isolation on 28th October, at which point, you guessed it, they'd have to fly out to Brazil to be there in time for their 11th November game. They'd probably be able to fit in the Palace game on 30th Oct but that'd be their only game between now and December.
So even if it can't be sorted, a 5 game suspension is an absolute no brainer.