Yes, those are incorrect. Perhaps it's just because I'm not located in the UK, but it really stands out for me. Those, the lack of periods and phrases such as:
>and thinked the way most of the team already worked and thought
Yes, that sentence in the first paragraph stood out to me too, but I really didn't expect for the article to gain traction.
I want to add that I can't suit everyone, there are things that annoy me about American English grammar that I can't change, and I wouldn't think about writing in the comments suggestions on how to fix it. Maybe that's just me.
>and thinked the way most of the team already worked and thought