Manual patching
I’d agree to this, GW1 didn’t have it. Probably they didn’t do cause it’s not as simple to do it like other mmos.
Especially since GW1 & 2 are the only games I know that have their data secured in 1 big file which also serves as a security measure.
though there is no reason not to be able to download a single file installer that places the files inside that file