I have noticed that sentiment as well. I used to watch a Youtube channel called Good Mythical Morning. I'm not sure how familiar you are with them but in one video they talked on what is the appropriate time to respond to emails and messages and both hosts agreed that a day is the maximum wait time. I find this ridiculous because as you said, some people may not have the time or ability to respond immediately. I suppose that given how information works today with having it immediately available, people forgot to have patience.
I am perfectly fine with this. I was also wondering the same thing but I didn't know were exactly to continue it.
Plague Rats is indeed a nightmare. I would argue that the Makai maps were not properly thought out since even high level teams would have difficulty getting around the UP generation. I understand this is why they have the Sacred Arms Prince implemented in the Jungle Arc, but he doesn't negate the halved UP generation. Thankfully I have Totono for UP so when she's ready I might be able to get through it. Interestingly when I read the comments for Plague Rats it was mentioned on how 2AW units now make it more doable. It's almost as if the Dev Team made maps for them prior to making them.
I have not seen the Industrial maps' enemies but from what I hear they are machince based but that's all I know. Well remember the White Empire was enemies with the Kingdom as well prior to saving the WE. Leona even threatened to take the Prince's head if they didn't become a vassal state. This is because the White Empire is heavily military based and the Kingdom being more focused on discourse there was bound to be tension. That reminds of Ancient Sparta and Athens actually. I am expecting a similar outcome for the Industrial City, since they are very machine oriented and the Kingdom very nature oriented.
To be fair Ninjas being no-block, high aspd units have their uses. I wouldn't doubt that they are or were part af many core teams. I kind of disagree with that, since Tengu are a utility class no two members would be the same. However, given that I lack a high dps unit, I am thankful for getting Konoha.
Oh dear, I really need to be more concise ^_^;