I actually have the the cRc app on my phone so it is easy for me to look at.
You left out the rubbing that is required. I don’t know why you insist that most strawberries are smooth. That certainly has not been my experience.
I cannot answer for what they did a hundred years ago. Do you have any proof at all that frum people did eat steawberries? I don’t know. I do know that I remember my grandfather painstakingly checking vegetables. I not recall him ever eating strawberries.
You have know idea if the crops today are in anyway similar to what they had a hundred years ago. The cultivating and breeding of crops may very well have led to crops that are more likely to have these smaller bugs than they did have years ago. People who don’t worry about the issue of tolaim would not be bothered by these thrips and therefore there would have no interest in developing crops that minimize thrips.