"Appeasement" is a term often abused, thrown about by commentators who seem to have no idea what it actually means.
Not nearly as overused as the term warmonger.
As for the meanings of the words appeasement or warmonger - apparently, they elude you.
Apropos that - you keep calling the keetle black, pot.
I think it's safe to say that the simple fact that the Federation made a concession to refrain from using their own cloaking devices, does not constitute appeasement.
It is not "a" concession; it is a concession one would only give after a devastating defeat. Your euphemisms cannot change this.
Not helping Poland against dictatorships is a relatively small concession by comparison.