@Shawn Hesketh Compare their “What is WordPress?” or “How to Install WordPress” videos [with our equivalents] ..."

I lack the bandwidth to do video-comparisons, and I would probably lack the time to conduct a fuller (and thus more-responsible) survey of the entire inventory of video products offered by WP101 and their current competitor.

However, when discussing very elementary, first-step aspects of WordPress, such as these cited 'what is it' and 'how to install it' topics, it would not be at all surprising to find multiple providers of lessons & tutorials using very similar language, and at times even word-for-word identical phrases, sentences & paragraphs.

Unless the creator of a video took pains to make their words especially unique & distinctive, we would actually expect a more or less high degree of overlap in lesson-scripts, again especially when considering the 'universal' basic elements of initially defining WordPress itself & getting it installed.

In fact, the Open Source 'WordPress Dot Org' organization & website itself presents such lessons, and treatments of these basic topics (and many others) have been front-and-center & free-to-all for years.

See eg WordPress' own public WordPress Lessons: WordPress for Beginners, for the index to their many guides for newbie & advancing users alike. All the confirmed info-gluttons out there will be anxious to peruse the Category: WordPress Lessons, for continuing education.

If creators of video-lessons are using the same 'authoritative' and 'standardized' free-to-everybody lessons & guides as references (which is not only 'obvious', but substantially 'unavoidable') that WordPress themselves have promoted for years, as the foundation for their scripts, then it is not going to be an intellectual property issue, that the verbiage in competing products overlaps.

Competition is a good thing. Although Copyright and other IP elements guard against outright copying of a product, they do not prevent others from using the same 'ideas', 'concepts', 'approaches' ... or otherwise making a new product that 'Looks an awful lot like ours, dammit'!.

That's just "competition", fair & square.