I don't think Adobe's incompetent when it comes to maintaining their own web site. It's the business they're in, and what the tools they make do.
So to be charitable, I'd chalk it up to competent malfeasance.
But on the other hand, maybe they're suffering from eating their own dog food! Perhaps ColdFusion web sites are so buggy and hard to maintain that they can't even fix their own infinite looping problem after all these years. Perhaps it's so hard to hire competent ColdFusion programmers and interaction designers, that even Adobe doesn't have any on staff.
http://www.pcmag.com/news/350574/valve-fined-3m-in-australia...
Before it even went to trial they globally overhauled their refund system, presumably after realizing EU, USA, CA etc also have consumer protection laws designed to protect consumers from companies that are committing fraud.