aww fuck it, I'll continue the critique:
He doesn't do an ingredient or equipment rundown at the beginning. This is basic stuff for a cooking show.
And then he pulls out a can of mushrooms? I thought we were making chicken, peppers, and "a bunch of seasoning"!
What the fuck is he cooking on? Basic information, buddy.
And then he pours the cooking oil OVER the vegetables? No, no. No thank you.
No mention made of the need to have tongs, a lid, and a spatula.
"Added...parsley flakes, I don't know what they do for it" then you don't add it, bruh.
OH GOD HE ADDS THE RAW CHICKEN TO THE COOKED VEGETABLES IN AN ALREADY ALMOST-OVERLOADED PAN, ENJOY YOUR SALMONELLA, BUDDY, literally the opposite of what you should do. Ideally you should have two pans, but since that's impractical, you should cook the chicken first and then the veggies, or if you cook the veggies first, take them out of the pan so you can be sure the chicken cooks thoroughly and no raw gross chicken juice remains on the vegetables.
"We need more oil, it's starting to burn" Well that's why you put the oil on the PAN not the VEGETABLES you dolt!
"...if you got high blood pressure, and who doesn't?" I don't
All in all, the most important lesson here is do not cook your meals in your semi if you can avoid it.
EDIT: None of this changes the fact that Len is an autistic unemployed virgin pedophile who has been banned from his favorite trainyard.
EDIT: Also I'm by no means a professional chef, and I would not consider myself good at cooking, but come on, this is basic, basic shit.