What the article said is that Mavericks Mail totally fouled up the method of dealing with with emails that the user applies two or more labels, i.e. intending to save copies of the same email in multiple folders.
In other words, if you're the sort of simple user who keeps all your emails in the inbox, and rarely applies labels, and never applies more than one label to one email -- then, for you, Mavericks Mail will be great.
I have to file certain emails in multiple folders for my work, and so I'm the sort of user where Mavericks Mail creates a mess.
The point of starting this thread is to say that Apple's quirky way of interfacing with Gmail's equally quirky labelling system -- that aspect -- is unlikely to be fixed in Yosemite Mail, because Apple chartered its course, and they're not going to backtrack. That's my take on it.
If so, then we're likely to see the continuation of the Gmail IMAP mess in Yosemite that started in Mavericks.
As said, this only fouls up people who use multiple labels per one email. If you're not that person, then Apple Mail should be fine.
