What is benefit of installing build-in help instead of accessing it on-line?

On main download page https://www.libreoffice.org/download/ there are two files to download: main installer and build-in help. What is advantages/disadvantages of installing it versus using on-line help? When should user install the build-in help and when not?

ADVANTAGES OF INSTALLING BUILD IN HELP

  1. Help is accessed even computer is not connected to internet. Like traveling with train and using laptop.
  2. If slow internet connection, then help is accessed faster from local files then internet.
  3. Privacy. For users that highly respect privacy accessing local help files reduces the ability to monitor what kind of help is he/she accessing using internet.

DISADVANTAGES OF INSTALLING BUILD IN HELP

  1. If using small disk help occupies additional disk space.
  2. Increases the backup image if whole partition is backed up (more files more time to take).
  3. Increases the time to perform full antivirus scan (more files more time to take).

Any other advantage/disadvantage?

Only two things to add: online help is always up to date (but it seems like right now it is not being changed that much at all), also not using it makes download slightly smaller. Most of things listed here are not worth mentioning anyway, only disk space is a real concern.

(and it should be “built in”)