Voice does seem to be something that can be worked on. Training it will work, to a good degree, and someone can really improve. Look at how actors learn accents. Its the same.
For VFS, I would say for those of us, who are extremely dare I say it passable, having a very female sounding voice can be good. For those of us who are not, it would be a mixed bag.
Candice Cane, on that reality show, we all watched but had very mixed feelings about, pointed out to Caitlyn how her voice was Her, Her journey. Some of us will relate to this, others won't. Its a journey you may want people to know about..
As for the safety, If anyone has read some of my posts, Im pretty pro surgery all round and consider myself a future member of the plastic posse once I hit 60 years old....
However, I will say VFS is not widely done in the States, Not done at all in the UK (best standards in the world) so beware...
My rule of thumb - If Dubrow and the other one on Botched won't do it its not that safe!
It looks like a very tough recovery. You can't avoid talking for long. Muscles will struggle to heal if used alot post surgery.
I would not compare it to GRS, or FFS. As frankly some Cis Women do sound Manly and theres nothing wrong with that!
GRS gives you the body of a Anatomical Woman. FFS puts you into the facial range, the voice though, its less of a issue.
I would see it as a last resort if voice training can't get you what you want.
A bit like Butt implants if the Hip Thrusts and Abductions don't give you the Booty you need.
Thats my 2 cents. Will add lastly, I am of the disposition that even if I ever after a Caitlynesque spend of $$$$$$$ looked Cis Female, I would still want people to know Im Trans. so the voice for me, isnt that big, For others though ......I guess you risk what you need to get where you want to be.