Consider the possibility that they design and balance encounters based on the assumption that a Wizard, if you have one, is legitimately a capable healer beause they can easily learn those spells and prepare them if you need; consider them basing how they design things, in part, on the premise that Wizard counts as a heal-capable class. The "It doesn't affect you" argument seems friendly and open on the surface, but it only holds water until it doesn't, and if this bug is actually a design choice, then the odds of it affecting their encounter design are not insignificant... so we need to know, because THAT, if it happens, DOES affect all of us, whether we make use of it or not.... and making a vocal issue of it does, indeed, matter.