Responses
It's 'coz of the LONG publication wait between chapters (like more than 1-2 months, sometimes only 4 times a year) and web published manga weren't really a thing yet when this started (it was published in a "manga magazine" together with other josei)
So to help out readers (old and new) recall the situation, the trend was to re-introduce the character and the situation ;)
These types weren't written to be binged at that time
The manga is pretty nice, but the amount of times they are repeating "I can see things normal people can't ... *In put 3 pages worth of explanation of her situation*" is just getting so annoying at this point. Okay we get it. She's special damn. :|