I think it looks really nice too. I found the link in a closed bottom surgery group on facebook where someone else linked it. As far as I know from how the discussion went about it there, it could be some extra complications with possibly losing ability to get natural erections. I don't remember if that was mentioned in the article or if someone on fb heard it from elsewhere.
But aside from that (whether it's true or not I can't verify) I think that method seems promising. It always kinda has been my hope that surgeons would be able to develope a form of meta to make it bigger/longer. But I think very few surgeons worldwide practice extensive metoidioplasty currently. And my dysphoria can't wait for that to be available for me, so I'll go with the regular/standard variety that is available for me.
I also wish there could be a way to tell what the post-op length will be after meta, but it seems to be a "body does its own thing" kind of deal with that. I just hope mine won't become shorter, cause I know that can happen too (that it can retract then).