Of course in the past scenes Io said that she would like to be ordered around by Misa specifically, but I can see it being extended to the manager as well.
I really don't think Io would have agreed with what Hase demanded of her just because "she likes to be ordered around," since who is giving the orders obviously matters to her: she explicitly considered hooking up with other lesbians and then ran away at the last second, as described in chapter 2. Hase just has extreme control over Io's life and career, the endorsement of her parents,, access to her home, and is physically threatening on top of all that. I'm pretty sure Io obeyed out of fear, not because she's playing along as a sub.
Valid. I think it's interesting how Flowerchild sets up similiarities between Hase and Misa, and I think Hase's order emphasized through the heavier font weight could have been a callback to that.
Like earlier in the chapter Misa criticizes the manager of thinking of Io as a pet, and earlier in Ch7, Misa wants to make Io "learn through experience... just like training a pet dog." Obviously Misa and Hase are very different, but I like how the writing does those callbacks.