The airline is a cheap one so it could be a result of that?
I don't necessarily think cheapness is an indicator of safety - all airlines would have to comply with the same standards, and after Garuda's troubles about a decade ago, I was under the impression that those regional standards were now fairly high. But it is interesting that this comes just after they'd been getting some bad press (in Australia at least) for some fairly heavy financial losses, and subsequently having to cut a route on short notice (Sydney to Denpasar, IIRC). Hopefully corners weren't being cut.