I really didn't make many assumptions. I speculated on what the process may have looked like (the first two), but those were not used as a basis of any argument. I guess you could call it an assumption that the return we got was light, but that seems to be the consensus from pretty much everyone, both here and from those in the industry who have weighed in (along with puzzlement). Someone posted something here last night, if I remember right, from a credible source that suggested teams were already using the Stroman trade to try to justify their similar lowball offers on other available players, including those from the Mets. That may or may not be true in reality, but it wasn't an assumption.
I guess it would technically be an assumption that if they're doing that with other teams, they'd likely try to do it to us with Giles as well, but it's a pretty reasonable one. I know in fantasy, when I make a trade that others consider bad, I'm flooded with bad offers after. I tend to do the same when others make suspect trades. I highly doubt it's any different for real GMs.