OPS is a real thing . fWAR is not. Does the average baseball fan know how to compute fWAR ? Is there a mathematical formula that determines one guy is a 1.8 and another guy is a 1.6 ? It is just some guy's invention. A mystery to most fans. And not something that effects their All Star voting.
Old school is good school.
Championships since purchase by John Henry group: Red Sox 4 Yankees 1
The Red Sox are 8-1 in their last 9 postseason games against the Yankees.
On base and slugging percentages have been around a long time.. They are easy to figure out. I don't know that it was necessary to add them together to create a new stat, but it is easy to do. Personally, I don't know of anyone who would take the time to try to compute a player's fWAR. And if they did, would it match with what the website puts out ?
Old school is good school.