Depend what you mean by sleeping on, it's like here in the forum? outside it's been very well received and based on what i've been reading on Jp Twitter so far the opinions are very positive too, i said days ago that i had the impression and feeling the series is going to perform at least decently in the rankings, but you never know (Agravity Boys and Magu-chan online popularity...)
Here in the forum, seems like is being enjoyed, at least basing in our polls where the manga is doing fine, i think being a GFC winner, with a artist that failed already and being another exorcist/supernatural series maybe give some insecurity for some people, that feeling that will just flop because "it brings nothing new to the table" this was pretty much the argument about Black Clover during it beginning specially after people realised the series was a hit (but people were way too toxic about it at the time)
