These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Jerkass Has a Point: When the Fuga Clan is revealed to have been behind the murders of several Kannagis and have also kidnapped Ren, Kazuma blames the Kannagi Clan for having brought it out on themselves due to their derisive treatment against Wind-Magic Practioners and other non Fire-Practioners.
The Scrappy: Ayano has her fair share of detractors, who find her tsundere nature more annoying than funny.
Though ironically, her rivalKatherine McDonald tends to get just as much hate from fans due to being nothing but a foil to Ayano, only far more arrogant and annoying.
They Wasted a Perfectly Good Plot: Jesuotaku in her review of the series accuses the producers of the anime series of this, particularly noting that the first arc could have been used as an entire season unto itself.