Sounds about right. Working in a fairly regular “cheat” day has worked well for me, but largely because I usually follow up with a longer than normal fast. I don’t do keto but try to keep carbs to a minimum and sugar to an almost never. Different things work for different people but in my experience throwing a curveball at your system seems to keep it heading in the right direction.
Because of Christmas, then New Year’s and then an extreme hangover I’ve pretty much found the same. IF + Keto + one day of a cheat meal has boosted my weight loss so much. I’m losing at a faster pace but also feeling happier because as great as Keto is, of course I miss carbs. I don’t crave them, but who doesn’t want a pizza or some chips?
Based on this and what you’ve said, I reckon I’m going to incorporate a cheat meal every so often