I do not think a Youtube video should consider a tutorial but could be used in a tutorial that all steps are explained with block's images. Also I watched the provided video and I believe it could be much better with less blocks
We can pick out or extract number or text from a mixed text
You can check this extension with text code123
If you will use ExtractText block you will get code as result and If you will use ExtractNunber block then you will get 123 as result