After just two rounds from the start of Ligue 1, you find PSG in the first spot alone as usual (without considering the delayed game between Lyon and Lorient of course).
We always heard how PSG is good because of money, picking top players...etc but what happens all the time is that the other teams are just failing and missing points vs weaker teams. Brest 1-1 Marseille was the newest thing but Lille, Rennes, Lens weren't any better..
PSG will play vs Monaco and Lille next. If it wins against them, I suppose by the 11th round (vs Marseille), the difference will be 10 points (again).
I fear your prediction has good chances to become true. It would really hurt the attractiveness of the league and the overall excitement for the championship, but eventually it doesn't even matter whether they lead by 10 points on game day 10 or game day 20. PSG would really have to fail incredibly hard in order for some other team to even stay close to them let alone overtake them and become Ligue 1 champion.
That would also be a shocking event given all the superstars that are on the team right now. Despite their age, Ramos, Neymar, Mbappe and Messi should be able to take home the championship regardless.
Certainly looking forward to the Champions League games at this point as this is what really counts in my opinion when we talk about PSG. I wonder for how long the sheikhs might keep trying to win the CL or whether owning PSG pays off for them anyway. Maybe through the marketing effect for other companies they own, I have no idea. It seems that they are still making money despite signing these crazy contracts with Messi and alike.