Your version reminds me of Vonnegut’s that was something like this in an imagined conversation with Mary Shelly: “Dr. R - Does it bother you when people call the monster in the book ‘Frankenstein’? MS - Not really. There were two monsters in the book, after all, and one of them was named ‘Frankenstein.’”
Based just on what’s in this post and not knowing much history about it, I’m where you are right now too. If their concern is “tankie” includes unobjectionable stuff, we can at least give them the opportunity to give us some examples to make their point. If they can come up with stuff that we agree often gets the “tankie” label applied to it but is actually consistent with this instance’s core principles, then we should hear them out. But if they are like “well, CCP is actually based,” then no thanks.