@faerin87 For me the key takeaways from the tutorial was Chapter 4 in the video (how to do skill work) and the importance of bent arm strength so I would recommend it just for that. I didn't follow the program he described in chapter 5 as-is since I had my existing routine and goals that I didn't want to modify. Here's what I did:
I basically added 3 sets of row work for horizontal pull to my usual pull days (started from bodyweight rows to tuck front lever rows like the tutorial suggested) and focused on pulling like he described at the end of chapter 4. Personally, I felt rows in general were much more low impact than the other exercises I was doing so I wasn't too concerned about the additional volume.
I only did the skill work (practising the actual front lever holds progressively) once a week where I did no other exercises that day so that I felt I was giving my all.
While I was working on the FL I also came across
another video which showed a correlation between weighted pullups and ability to do a front lever. And since I was already doing weighted pullups for vertical pull during this time, I focused on getting better at it. And anecdotally I think it helped a lot since the gains I was seeing with the weighted pulls were coming hand in hand with progressing through the FL progressions.
I hope this helps.