And, AFICT, MC 7's FrameFlex decisions don't get carried over in an AAF export to any finishing application.
Not yet....
4K? MC/Symphony can't even do 2K. That means letterboxed cropping to make a 2K DCP.
Sure, if you need to finish in 1080P only, you could finish in MC/Symphony. But the CC toolset is more than 12 years old. Just adding a vignette is PITA. The tracker is abysmal by modern standards. Symphony's secondaries are not nearly as precise as what you get with other finishing programs. The available noise reduction plugins are not near the quality of Neat Video. And the color math isn't 32 bit float, it's 12 or 16 bit integer depending on the how the CC effect is applied. I'm sure you've seen situations where a similar change is made is MC/Symphony, Baselight and Resolve... and the Avid grade just doesn't look as good as the Flimlight or DaVinci grades.
Honestly, this is just repeating what we all know over and over again. I said it's not a finishing tool, at least for feature work. Avid's current finishing tool is DS. That may or may not continue to be the case, and if and when it isn't the case, I would guess that you'll see a resolution independent Media Composer variant to replace it - possibly as a separate product, possibly as a new Symphony option, possibly across the board. But at this point in time, many, many television programs are finished - or at least conformed, titled, and final edited - on Media Composer and Symphony just fine. At the end of the business in which Avid dominates, there is very little color correction done in the editing program, and nobody really uses noise reduction there either. These things are done in other software and the result brought back to Avid for creation of the final master. This is the way it's done for at least 80-90% of the shows you see.
