That only works for dishes that are related or similar to other dishes you've made in the past.
As soon as a banana leaf, raw fish, etc etc enters the picture you'll want to read the long form. Also if you want to actually get better at cooking, tiktoks just won't cut it as there's no time to discuss all the nuances - and quality food is an amalgamation of many small nuances.
Usually when I use a tiktok cooking video, I'm not really "following" it, but just using it to get a general idea then riffing on it.