Good points.
One of the things that irks me about reformed thinkers is their willingness to make a truce with certain worldly things. It's not that owning a TV is inherently sinful. It's not that drinking is inherently sinful. It's not that owning a fast car is inherently sinful. It's not that being a wise investor is inherently sinful.
But when you take these things collectively, you end up with a materially wealthy family who has a retirement plan that allows them freedom to not depend on God, a television they watch religiously, toys to compete for their quiet time, prosperity that makes them forget God......
Now compare this to an untrained missionary in India who has nothing but shoes on his feet and scars on his back, doesn't have the foggiest clue what the word 'supralapsarian' means, but has planted 40 churches in the face of persecution.
Somewhere, somehow, we have lost our way. Based on this, it is good to examine the lives of others. Even if you disagree with their theology.