Yes, that is my argument.

I don't think most people would consider inability to predict events that will occur after your death, and the act of not committing filicide to be very serious character shortcomings.

Commodus renounced Stoicism after his fathers death, and didn't do any of the terrible things he was known for until after then either.

This argument is beyond weak in terms of criticising Stoicism or Marcus.

There's a big difference between using Commodus as proof of Marcus' flaws, and using him as proof that Marcus was only human.

If the argument were that weak, you wouldn't bother with the strawman to counter it.