Yes but you do not have to upgrade to Windows 10 and they made it pretty clear they removed these softwares (it warned me when they proposed the update). This is unfortunate but I don't think Microsoft has been evil here.
Everyone has to stop using that as an excuse. It doesn't even make sense & it's myopic. Obsolescence is built into Windows. If you want to continue being safe using Windows you NEED to upgrade. You can choose not to upgrade, but it's at your detriment.
If it was 2020 you might have a point, since that's when they'll end-of-life Windows 7. But it is 2015, you can use Windows 7 with Media Center and your DVD codec for the next five years.
Honestly I get the strong sense we wouldn't even be having this discussion if Windows 10 was NOT free i.e. if it costs $100. Since then people would simply not feel compelled to upgrade, instead it is free for a limited period, so people feel compelled and are now complaining about being "forced" to.
The reality is you can use Windows 7 until 2020. Just go ahead and do that then.
Sure it is a choice. You absolutely need the DVD player...don't upgrade now. Maybe by the time you need it, the functionality will be restored. Regardless, it is a choice you can make. Don't be entitled.