You know how some music artists have that one hit that you hear over and over, then never hear from them again? Everyone knows the 'One Hit Wonder'.
Now we need to apply the same thing for villains in a comic series or mini. Kinda like a 'One Arc Wonder'. Come in, do their dastardly thing, then you never hear or see from them again. Unless its someone reminiscing.
But yeah, otherwise, solid props for this issue. Can't help but wonder with all the good feels going on, if it is going to continue beyond the therapy, or if reality will come crashing down around them when they leave. (AKA when another writer gets them again)