He wanted Wenger out. Not about him. Ultimately we will continue to fall behind City, Chelsea (because of their investment at board level), United (because of their staggering revenue streams) and maybe even Liverpool if we fail to get top 4 this season.
This comes down to money. We don't generate much in comparison to United and Kroenke won't invest any of his money in Arsenal. Perhaps this Nigerian billionaire is our best hope of success in the next couple of decades.