OK, I got to the part that reviewer thought was too woke and, as predicted, I thought it was sweet.
Basically Amos came out to Tessa as bi and she came out to him as pan, although neither of them used those labels.
TBH I really liked that this was a portrayal of bi/pan folks as being open to commitment and not overly promiscuous (there is nothing wrong with being slutty, it just gets old as a bisexual stereotype).
Here's the grumpy reviewer, for everyone's enjoyment