Agreed, but multiple gripes over multiple communities is a pattern worth noting.
There's more good cars than willing buyers at the moment, so dealers need to be good as gold to keep people coming through their doors. If they can afford to 'upset' so many people, then good for them - but I'd certainly avoid them for any future purchases based on internet hearsay alone, because there are plenty of reputable alternatives.
I'm sure plenty of good cars are sold at KTC, but every sale should be a good one - and plenty of dealers will go to lengths to make this happen.