Regular dividends are not on that list (only "special" dividends result in adjustments). And market cap changes are only relevant as far as the "change in outstanding shares" is concerned, which is not usually the main driver for market cap changes.
The problems for an index are a little different than an ETF following an index. If you have to allocate capital behind the index, you have to do some more adjustments and the expense ratio is going to reflect that.
I guess I was wrong about the splits, but everything else still holds.