Yeah, but that's not necessarily a bad thing from the dev perspective. The devs may not think the average player should be carrying about abilities. A lot of people play Pokemon games like its JRPG Kirby.I think having a proc would make abilities similar to those seem more important, as it is they often feel negligible
Battle Armor having a proc would be really useful so you can actually take notice when it saves you from a critical hit.
Legends Arceus is probably more in line with how the average player might see the battle system, for instance.
That being said, I don't really agree with this philosophy, and they still do try to explain things in-game sometimes that shouldn't really matter more than abilities lol.
Idk, this is just my theory, I don't think it's good but I am trying to get into the head of a dev. Another thing could be that they don't want the proc message to show up over and over, but that is something that could be fixed (for instance only showing it when the Pokemon goes in and out of range, but that actually may be more annoying if you're healing maybe? I unno)