Today I tested this recovery on oos 11 and here's my conclusion:
-Factory reset is broken , but I successfully wiped all the data in 2nd try.
-I also backed up data successfully, and restored boot from it.( Still need to test if I can successfully restore full rom and data).
-Can Install zip files, flash custom roms, root etc.
So my main point is, ofcourse everyone prefers stable recovery, but this one too is much capable, and useable and successfully does most of it's job at least for average people. So, be happy with what you got and ofcourse let's hope for the new release soon.