The problem with his plan is it’s too much too soon for the average dieter.
For the average person who wants help losing weight (the majority of which have come from other diet groups such as SW, WW etc and/or have limited knowledge on the what why’s and how’s calories in vs calories out or are just a bit lost), the massive amount of information and macro detail is just unnecessary, overwhelming and not fit for purpose.
I hate to give them a business plan idea, but if they want to appeal and really work they need to look at different levels.
1) average person who wants to lose weight and needs encouragement to move more = realistic calorie amount/realistic deficit based on cals only and a max 10k steps a day.
2) person who has nailed step one and has hit a plateau, stuck in a rut, bored or is ready to increase fitness or who already has a very high step count daily = introduction to basic macros but with realistic targets and increased steps/workouts
3) those experienced in training/exercise, whether that be runners or they go to the gym a lot etc, or those who want to become leaner not just slimmer = increased calories (due to training expectations) with much more detailed macros to support their training with personalised fitness plans along with it.
They also need to get some bleeping empathy, take on constructive feedback, evolve and drop the crappy attitude.
He fits into number 3 and expects 64 year old Jean from up the road who’s been on SW for the last 15 years to suddenly start tracking her bleeping protein - which probably equals 22 chicken breasts for breakfast - and to do 15k steps even though she’s just had her knee replaced. He’s bleeping clueless and can’t see past his own nose.