All of which are in their own little universe that have very little to do with the regular lit verse except for references within them to characters from it that are also included in this universe, Much how STO is separate from the regular lit verse.
But they still sold books with him on the cover and I don't remember any cover disclaimers that these books really don't count. They brought him back to sell books.
Technically none of the books actually count what with the whole not canon thing, but you notice that non of the authors have acknowledged any of the events from the 24th century set Shatner novels right which generally means he's not alive their.
And its pretty much a given that the Shatnerverse is its own thing separate from the main line of novels.