Of course you don't have to pull over in a turn lane, that's nonsense.
But she wasn't in a turn lane until the end of the video.
The law says use of a non-handsfree phone, it does not specify talking, texting or recording to cover all use and just to eliminate technicalities as you brought up. It was written to cover all use that may/does distract the driver and the wording has been used by other states since.
Now if we can just get the legislature to make it a primary violation, but they are wanting to "let the people have time to get used" to it as they did with the mandatory seatbelt law.
I say BS, publicize it starting in Jan. and enact and enforce it starting in July, just as almost all other changes in the law are done here in FL.
Also the driver of a vehicle may not have an active video screen within their line of sight (under a different much older law, except a navigation screen showing navigation), so if she was looking at what she was recording, to keep in frame, and it appears that way, since the entire video was decidedly in frame, then that would be a third count.