As far as I can tell, the only people who seem to have any particularly strong feelings about this are the fanatics who think BTC vs BCH is some sort of religious holy war and that the enemy heathens must be smote.
You have Bitcoin.
Then you have other stuff.
There should be no confusion. Having two two syllable bitcoins is not helpful. Places like changelly are built for noobs and the less confusion they foster the better.
Any service should know perfectly well how fucking stupid many people are. If they're increasing the chances of stupidity then something's going on. They're not helping their own service levels with something like this.
Regardless of how they feel about anything, the first thing they should be doing is minimising the possibility of people screwing up.
I was reading a Telegram chat the other night by a guy who runs a payment processor. He was offered a large amount by Craig Wright to integrate BCH. He said he'd do it when they changed their address format for good otherwise he'd carry the can for the confusion created.
Then Craigy made dark comments about not pissing him off and he got walloped by Twitter trolls.