Originally Posted by
hotphil One reason I can think of at the moment is that OneDrive and OneDrive for Business are still very different apps. There may be some technical obstacle in there.
OneDrive and OneDrive for Business are totally different things. To put it simply, OneDrive for Business is really still SharePoint with a clumsy wrapper added to it. They do not even share the same syncing engine. Other than the name, the two products have little in common. Leaving aside other interface differences, anyone who has used OneDrive for Business and seen their storage space disappear as it mirrors all of your contents twice on the machine (once to the visible location and once to a cache) can also tell you how inconvenient it can be.
Quite frankly, OneDrive is a robust service already integrated into the Windows OS (and File Explorer) and OneDrive for Business is a still half developed mess that sits on top. I can't even use it on some of my office laptops and tablets because modern machines with SSDs do not always have the space to simply waste on the appalling file management in OneDrive for Business.