Well, if she did in fact say no, I feel like the general public (non Carrie stans) have probably forgotten about them asking her in the first place since it was over a month ago. Maybe she did offer to co-write with them once the current situation dies down. Carrie has said in the past that projects such as duets need to be the right situation, and she has turned down stuff in the past if it didn’t seem right. Something along the lines of you can’t force something (this was when the duet with ML was happening). If someone such as Dan and Shay asked Carrie to do a duet, I could see it having a higher chance of happening given the fact that both Carrie and Mike seem to like them. Carrie doesn’t follow many people on Instagram, but she follows Shay’s wife Hannah Billingley which surprised me.
If FGL hadn’t been a bit dumb in the first place and publicly posted about it, none of us would know about this in the first place (probably how it should be).