Not so much hate for me, but apathy. For your one CMS, there are dozens based in Rails, Django, Node based ones I've not even heard of, and same for Go. For any of those, I just need Sublime and a server of my choosing. Furthermore, I can do dev on my box (a Mac) with very little spin up time.

Contrast that to your scenario. First, I need Windows, which is fine for most, but not me. Then, my prod setup has to be Microsoft based. I've yet to find a $5/month IIS-based host with SQL Server (apathetically, I haven't looked much). Oh, and Visual Studio. I can probably get by with Express, but at some point I expect I'll find a wall that forces an upgrade.

Microsoft has come a long way, but when I started years ago, I couldn't swing a Microsoft-based environment. VS was prohibitively expensive, and my parents' crappy computer couldn't run it. But I could learn PHP for free, run it locally through XAMPP, and be off to the races. Microsoft's never won me back, and your CMS is paying that price.