I agree. That blind guy shouldn't have been that good. Also, the suits were cool when Wick and couple of others were wearing it, but they made it too common.There were a couple of things that imo, were kinda dumb.
1. the ballistic jackets everyone would use to shield bullets from hitting their faces.
2. the blind assassin dude killing as many people as Wick. Completely unrealistic.
Other than that, the movie was entertaining
Overall I still loved it but it was bit long.