I am not familiar with such conspiracies, from what I seen he is accusing Apple of incompetence a lot and the keyboard case confirms that Apple can do sometimes stupid designs and he is accusing Apple of anti-repair shit and this is also true see the right of repair laws that are debated in US states and EU.

We do not have any emails or other internal Apple materials to know for sure why Apple kept hidden the fact they crippled your iPhone CPU (again for the fanboys the issue was the HIDDEN part) but for now presuming Apple is hidden things for your own good is let's say naive.

He has his faults, but calling him a “conspiracy theorist” is uncharitable.