Again, you're citing the source control system as the primary feature. TFS is an entire application lifecycle management suite, not just version control. You seem to (continue to) ignore this. Its closest analogue is probably the entire Atlassian family of products.

On TFVC:

> it sends way WAY too many files up and down constantly

It sends literally zero files anywhere until you interact with the server, as any sane server-based version control system would do. I don't know about your workflow but I don't know what you consider a reasonable amount of I/O to sync a workspace. You can elect "Local" workspaces since around TFS 2012 which can work completely disconnected if you choose.

> branching/merging is expensive as all heck

It's folder-based branching and can be done very quickly/cheaply if you don't store your entire company in source control. And how well does Git handle large files? Git is opinionated on branches and creates them cheaply/quickly; TFVC evolved from CVS-type systems where this was not the prevailing mindset, but again I don't know what you're considering "expensive." Maybe where you work?

> even Microsoft's internal teams are utilising Git and Github

Which isn't evidence of anything other than it's their current tool of choice. That has a lot less to do with future direction of their enterprise products than you're assuming here.

> Microsoft's own consultants

> Microsoft's internal teams

> the Windows team within Microsoft

Do you have insider info or are you just trying to sound like you do?

There are definitely some people who prefer to use TFS and some teams (like .NET) that are heavily invested in Git.

And yes, we call TFVC TFS all the time :)

Here is Brian Harry at MS on this very topic about a year ago: https://blogs.msdn.microsoft.com/bharry/2015/03/12/the-futur...

> "Most of our customers still use TFVC and we value this tremendously. Most people in Microsoft still use TFVC. Most new projects created today on VS Online choose TFVC."

Etc. It's quick and to the point, go read it. And again, has there been some sea-change at MS over the last year on source control? Quite possibly. But so far you've offered nothing but your opinion.

TFS on premise also supports GIT.

VSO is literally TFS in the cloud. Once x feature comes out VSO, then it comes out in TFS a few months later.

I assume they have a shared code base.

You confusing TFS(ALM- CI, Code Review, Testing, etc) with just the source control component

I think you're confused about what TFS is. I use tfs daily, but I don't use it for source control. I use git for that. Source control isn't even the main thing tfs does. TFSVC (the version control part) may be dying, but the rest of it seems pretty solid.