I’m genuinely curious what you were trying to convey by completing your, totally valid, disagreement with “so whatevs”? I believe this is the part that’s perceived as rude because the expansion of that, “whatever”, is often further expanded as the sarcastic form of “whatever you say”.

in some context "whatever" can be it evens out, but in others it can be "your opinion doesn't matter".

At any rate when I first read it I thought it was going to be some sort LLM thing where you said "remove the third bridge and increase pitch by one octave in the outro" and it would give you back an edited mp4 which you could then listen and cringe to and sometimes say "whoa, that's amazing!"

Uh, no I'm not. In my work world, disagreeing with "whatevs" would be considered rude and dismissive and would be called out.

Believe me, I don't care that you disagree. I just don't like to see people breaking the civility guidelines here as it's just about one of the last places online where discourse is largely held to a a civil level for disagreements.

I write copy professionally, among other things. If you don't care whether what you write is clear to almost all readers... then I suppose it doesn't matter. Most people do not want misunderstandings of their copy and most copy editors would flag that as unclear. The new version is much better.