If you are betting on PSG as one of the multi-bet matches, then PSG is almost ideal for this - the end result is exactly what it should be. But I would not want to be in the shoes of someone who bets on PSG and watches the match - personally, my nerves would run out much earlier than the stock of satisfaction from the won bet
In matches of PSG, in Ligue 1, if they don't win big, in most of matches, you will lose your bet. Because of their domination in the league, the odds for them is not good, as a gambler you must be aware of it and take care of your bet if you like PSG.
As for Messi, I think the coach is right in his actions - in the end, while he was on the field, PSG lost, and after the replacement it was able to recoup and come out ahead.
Pochettino made that substitution with a reason that Messi got an injury and he needs to be saved for the match in Champions League next week. If Pochettino told the truth, this drama should be closed.
Moreover, PSG need to have a striker when they have to create more pressure so Icardi is a good choice of the coach. Messi on his side, needs more time in PSG and with his top-notch level, I strongly believe that he will shine in Ligue 1.