Hello. I manage a big network, with around 400 sites.
I would expect a better management for big networks. There are certain pages, like the “manage users” where if you inadvertently trigger the “select all” the page start to load thousands of record, taking minutes, with no option for the user to stop the process and making the page stuck forever.
This is just an example. There are other similar situations, like the page of the plugin updates.