Thanks for pointing out the inbox was full, wasn't getting a notification (also weird it is capped at 40 messages).
In my opinion, the Kono full body routine is nice and basic, you can't argue with general strength and hypertrophy work like that if that is what you need.
This is a good question because my team just entered their volume/hypertrophy/positional phase with the beginning of the year and I've got them on this plan through May/June. We still do the lifts but the average intensity drops to 60-75% (still with the occasional single attempts over 80% 1-2x a week). I refuse to decrease the amount of practicing snatch and C+J regardless of a training phase and the intent. In my experience it is detrimental just in terms of familiarity and consistency. Simply take the intensity down to an appropriate level to accommodate the emphasis on higher rep squats, pulls, presses, and ancillary movements. I like using complexes for the lifts themselves that way you can combine pulling or squatting into the skill work and accrue more volume in that manner.
This article has had a good influence on me in the past. Medvedyev suggests greater attention to <70% weights, the use of complexes, and repetition (6-10) squats to develop all muscle fibers in the absence of performance enhancing drugs. Coupled with a
recent article from StrongerbyScience confirms my thinking you do not need to take exercises to failure in order to see strength and hypertrophy gains.
Anyways I am getting away from the topic at hand: yes it is important to devote time to other skills besides the lifts. For my lifters right now we are focused on that (but not to the exclusion of practice). Increased repetition squats, pulls, presses, and complexes are a great way to break up the monotony of 1-3 rep work and develop type I and type IIA muscle fiber types. On top of that, it is important to develop stabilizing muscles with higher rep (15+) or duration (30 seconds or more) exercises. Focused efforts into dynamic flexibility work are programmed for example such as good mornings/RDLs or bar hangs or close grip OHS with the emphasis on using it as a weighted stretch. Plyometric qualities are very important to me as well so we a progressively training towards low-impact jumping to high-impact jumping over the course of the next few months as well.
Regarding fiber type, most people have a pretty even split of slow twitch to fast twitch fiber types prior to training. Very few people have an abundance of fast twitch (IIx fibers) naturally. Interestingly enough, with training almost every gains a significant increase in the IIa fibers due to IIx fibers transitioning to IIa (going from more anaerobic to oxidative in function). It is really interesting that this is seen even in many power sports where there is actually a decrease in IIx fibers compared to the average population.
Weightlifters also seem to have higher fast twitch abundance regardless of being National or World calibre, even compared to bodybuilders, sprinters, and powerlifters. There is plenty of evidence to support that muscle fibers can transition from IIx to IIa, and even from I to IIa or IIa to I dependent on training.
Also in my opinion, I don't think you don't need to see actual increases on the scale to necessarily see hypertrophy gains. Hypertrophy can be an increase in actin and myosin filaments, myofibrils, sarcoplasm, and/or connective tissue. These adaptations don't necessarily tip the scale.