I haven't seen Dumont say anything about the cancellation as of yet, so my guesses are either she's still processing it and finding her thoughts and feelings before saying anything, or she's focusing on the everything else she's doing.
I'll add that my problems with the show, starting with Dreamer's death, were always what the writers did with/to characters. Never the actors. Dumont was always very professional and good for how she approached things, and it's disappointing - but not surprising - that the show wasted what she brought to the table in season 2. I have various theories as to what was going on behind the scenes, but I won't say any of them. Mostly because I know nobody here cares and it's not a big enough matter for me to post it here in spite of that.
I'll also add since it's safe to do so now that I always saw dynamics between Polaris and Esme as likely to garner a lot of fandom. Particularly since Skyler Samuels was amazing in Scream Queens. I'm relatively sure the show would've been able to build back up if it had capitalized on Lorna and Esme, though Nix and the writers probably would've stopped trying to improve beyond that once it reached "sustainable levels" (read: just enough to keep the show going for more seasons, nothing more). If everyone involved was open to it, show could've even taken the route of Lorna and Esme in a lesbian relationship as they raised the baby. The big risk would've been the show trying to throw Lorna under the bus to promote Esme; which as I heard they did to Lorna with Reeva, but with no success.