Viktor E change good or bad?

I have been a fan of Viktor for a while (still haven't gotten around to buying him yet, Don't get to play very often) because I love the idea of a mad steampunk cyborg mage and I really like what I have seen of his new rework. It seems to keep a lot of what made him fun before, and gives him a little extra like some much needed power for his hex core. His Q now has a reason to have a MS boost, his W can actually be used to engage a fight now, and his chaos storm can get that much needed MS boost from the final hex core upgrade. I do wish they would return the E's upgrade to the burn though, because by changing it they have removed one of his more interesting build options, mostly burning death Viktor, (morellonomicon>Liandry's>Rylai's) And I feel that removing viable build options like this makes him less unique/makes his build options very one dimensional. @Riot design team: would you consider changing Viktor's E augment back to a burn instead of the current lackluster firecracker explosion to improve build diversity and options? Or is there another specific reason (counter play, higher damage, better burst, etc.) why you specifically chose to change his death ray's upgrade?

Anyone else have any info on why Riot did this, or just want to share your opinions on whether the E change is better or worse than the old one? (Disclaimer: I haven't played the new Viktor yet, so these opinions are a little biased towards the old Viktor E)