Major Weaknesses in Plotting The Story

Rating: 5/10 (5 August 2019)

So the film has a good pace that keeps me interested up-to the point when Thanos has won and retired to a planet far away (the first reality) ... then the avengers travel back in time and Thanos realises his plan will go well ... but here comes the first weakness in story ... if Thanos had all the stones ... knowing that the first snap didn't kill all the avengers, in all his wisdom and knowledge, he must have seen the possibility that there will be a counter attack, using the time stone to see this!
And if he had seen this and known that he will be killed he would have ... yes ... destroyed the stones as he says ... and that is a great thing ... but ... still he would have known that past his death ... the Avengers will travel back in time and get the stones again, snapped back everyone into existence again and killed him for second time in the present time ... he would have known this
But when I saw this film, Thanos was deliberately limited in ability even when having all the stones in his possession to make the avengers win ... which is very wrong.
Second Weakness ... If Doctor Strange only saw one possibility of winning this, so would Thanos see that too and found a way to secure his goal. There is no way you can have all the stones in your hand and still not see the whole future ahead of you. Thanos would have known everything about the happen after the first snap, you just don't retire knowing your plan will fail ...
This "reality" is very bare and I don't understand why it wasn't dealt with in the film ... this made me honestly dislike the film, the first one (infinity war) had great plot points, but this was majorly lacking due to what I have written about.
I honestly felt like giving it a 3/10, infinity war I gave it a 9/10