Yeah, basically. But again, none of this is real anyway. Readers today still enjoy Trek novels that were contradicted by canon decades ago, like The Final Reflection or Federation. I'm disappointed that I probably won't get to continue the post-TMP series from this point, but I hope readers will still enjoy Living Memory as a story on its own terms.
At this point, given that Coda has defined pretty much the whole novelverse after First Contact as distinct from the canon timeline, I'd say my only books that could still be considered consistent are Rise of the Federation, my TOS books other than Living Memory (though Forgotten History is iffy due to its 24th-century DTI elements), The Buried Age, and arguably Places of Exile, as well as my short stories in various anthologies. That's still the majority of my Trek output, but less than 2/3 of the total. And it's probably only a matter of time before canon contradicts more of it. I knew that going in, like all tie-in writers to ongoing franchises. It's just the nature of the business.