I don't know how niche it is, but I
complained about not-super-pretty glowing characters, and I remember at least 1-2 people raising it elsewhere.
The way they sound in the interview is, precisely, as if they'd happily tweak the amount of bonus given until the spell becomes popular (2d2 ? 1d6 ? 2d4 ... ?). Instead of, you know, trying to get plenty of other things correct
first, indeed, waiting to see how the general balance evolves (ideally without Backstab/High-Ground giving Advantage for free, and with fewer sources of Concentration Saves), and
then evaluating whether they want to make Bless more popular and how to proceed for that.
