The choice was purchase an S7 (or other devices) or to accept a full refund. If people chose to use the S7 as a placeholder, yes that situation sucks, but that was a choice. The option to just take a full refund and wait was always on the table.
I'm glad you understand the word choice. Samsung also made a "choice" to promise to exchange those S7 devices for the N7 once they fixed it. You see, when two or more parties make a "choice" together like that, we usually call that an agreement. So when Samsung didn't make a replacement and offered no recourse for those S7 devices, that would be breaking the agreement. So they made the "choice" to leave those customers hanging. Those customers didn't have a "choice" at that point. But in the meantime, you're missing the whole point altogether over semantics.