Thanks for doing this, trail! One thing I noticed is that it can take a long time for the data to load, and it doesn't necessarily all load at the same rate. In fact, at first I thought there was an error somewhere, so I was going to poke around and look for the error message ... and I noticed that part of my team's player data had loaded. Over the next few minutes, other parts of the sheet populated, and eventually the whole worksheet was ready.
I assume like with other things this is a Google issue, and the best thing to do when it happens is to go find something else to look at, come back in a few minutes, and see where things are. At least that approach worked for me!