!. I should email them and (politely) inform them that the PFCO was supersceded over 2 years ago by the GVC. There is also no difference now between a commercial flight and a non commercial one (unless theCAA have changed their minds).
2. Get some insurance, it’ll cost you about a tenner for a days worth of knowing you’re covered.
3. If the video could be monetised, then it could be classed as commercial. Do a risk assessment and get some insurance, (see number 2 above).
Be safe, not sorry.