Beetlejuice made an annoyed huff, but, didn't press the murder issue. Character growth and all of that. If he did ever get invited back by the Deetz/Maitland crew, he wanted to at least be able to say he considered not-murdering as an option once or twice.

But he did frown at the news there was an actual exorcist bugging the local deceased population.

"Expulsion then explosion---probably best to avoid it. But, an exorcist is bugging the local ghosts? What's his beef?"