You can still use tags. They haven't been disabled.

Also, if you want to break up a large quote into several smaller quotes using the editor, simply place your cursor at the break point and click the quote button at the top of the editor. It will split the quote and allow you to type normal text.

The next software update will likely contain a user setting that allows you to disable WYSIWYG.

I'm working on an option for multiple quotes also. You can still use the traditional copy/paste method of quoting multiple people. Not ideal, but people did it for years before vBulletin introduced multiquote :)