I would have assumed that in ANY circumstance, being 'rude, thoughtless, and a bit stupid' was also seen as behavior deemed 'unacceptable'.
Its kinda of subjective, being that something rude, thoughtless and a bit stupid might not be the same as what someone else thinks is rude, thoughtless and a bit stupid.
I'm just perplexed how you could feel it was an afterthought, and didn't see they where agreeing with you. With the added hope the flowers would bounce back and be fine.
Gotta love the internet, and the lack of person to person communication that usually helps avoid these types of disagreements