I don't think that's how it works. azzasu is an abbreviation, and it's also used in writing. By contrast, ou->ō isn't actually shorter, it's just a slightly changed pronunciation. I don't think we ever hear school pronounced as ga-ko-u, for instance, nor do you see it written as がっこ, but instead you can find examples がっこー.
Certainly ou->ō isn't shorter, but is more easy to pronounce, so gives the same benefit for the speaker. As to gakkou, I am certain it is written がっこう, not がっこ or がっこー.
And for the difference between ō and ou, at least I do differentiate them when I speak Japanese, and I can distinguish the sounds when other people speak.
But what else are we supposed to talk about, until the devs start throwing out dev diaries?![]()
This. we just want to talk something about Sengoku, even if the topic may be the remotest related one, and we try how long we can keep talking about the same thing when there is no new topic