@Grieffon
This sooooooo much. I will say Pinkies reaction to Discord is mixed so there is a possibility of the comic working with her since Pinkies attitudes with different ponies and peoples flip flop all the time.
@Bolan
Ok the idea that Discord used his power to give Fluttershy something nice or the CMC something fun is somehow a bad thing seems rather short sighted in my opinion. Both comics were trying to establish that Discord while having to keep his powers in check with the Mane 5 watch dogs that he still has a purpose and that he is slow learning what the meaning of friendship really means (unlike the wham bam thank you ma’ma we got at the end of S4 with that part of his arc).
Add to that, until the show gives Discord eps with the other Mane 6 issue with him being cased as water under the bridge, Discord is kind of muzzled right now in the comics. The comic CAN’t give him deep plots since it might go against canon related stuff that the staff have cue up for S5.
While the controversial mirror arc went into Cel and Luna history we have the Sister Journal as well as other history that had been in S4 revealed so something like that is not a huge deal since most of the important like Cel relationship with SS can simply be sad to have become unpleasant over the years after Luna as banished and no need for mention of the mirrors arc implications as to why,. Discord on the other hoof sadly can’t get away with such things yet.
Due to the fact that we know NOTHING about him outside of what we learned in RoH there is little to work with outside of the trickster gimmick and what we have seen in his arc of learning the meaning of friendship. So with little to work with the comic writers simply can’t give back history since it will either spoil eps or completely not gel with the info in the show and with the comics have so far been pretty good with keeping to show canon would defeat the purpose of giving him more depth since it would mean nothing in the overall canon of MLP.