I guess to be heard you might create an issue on their git repository pointing to this topic. anaconda
It is never easy to implement a new software. However if you miss the old anaconda, I guess you just have to use the everything ISO. There you still should have the old installer available.
//rant:
I used the the new installer to create a GPT Partition table. The Disk I used was a external USB Disk. It simply deactivated the internal disk in the efi boot options and booting was just possible with the external disk till I activated the disk again in the bios. Might be handy for new users not to overwrite their internal disk. However I needed a moment to find this out.
//rantover
I added the anaconda tag to see if we get seen 
I could not find it as a title tag.
p.s.
You might check the tag to see that there are already some topics with useful proposals for improvement.