Thanos is packing his A game these days.
I just finished Infinity #6 myself, and it was pretty obvious that Thanos is currently being written well above Thor's power level (or any other Avenger's power level for that matter).
Hulk and Thor were both just time out of his day. No real threat posed.
This just cemented Thanos as a true Bridge Class villain for me.
He is more powerful than Thor or Surfer, but less powerful than Odin or Galactus.
Thanos lives and plays right in that power gap.
Thor would need to have the OF again to stand up to the Cosmic Titan.
Because for the time being, only his baby boy Thane has the raw power needed to put daddy in his place. 😎