Honestly, this seemingly late "bringing to the forefront" (I guess you'd call it) of the whole "Online Only" vs. "Make Available Offline" thing has been more of a headache than a help, if I may offer my opinion.
I purchased a new ultra-portable Windows computer which has a 256GB SSD on board, but I plan on using my Dropbox files with it, and I have well over 256GB worth of stuff in my Dropbox.
The thing is that I'm often in situations in which I need offline access to my files.
So I purchased a 1 TB microSD card, which will never leave its slot in this machine. Heck, I can't even retrieve it, it seems.
I mounted it so that it isn't considered "Removable Media" by the computer, and then I proceeded to install Dropbox on the computer, with the intent of using the 1 TB card exclusively for Dropbox content...offline.
I left my machine to sync overnight, and what do you know? Everything has a stupid cloud next to it.
I have no option to "Make Available Offline," either in the file/folder context menu or in the Dropbox application > Preferences > Sync menu.
If this is by design, it's a pitifully stupid design.
I'm going to whatever lengths I can to make this work the way I envision, but I'm going to be awfully disappointed if Dropbox doesn't respect use cases that might not necessarily conform to a narrow definition.
If it's an issue with a recent update to the application, then please bug the developers posthaste.