Indeed, you cannot write a handler trigger that mixes attribute tests and a path.
It would not be that hard to add this, and this request has come up quite a few times, so I guess I'll be working on it shortly.
BTW I have long delayed work on this because if I want to do this properly I would need to write a complete streaming XPath parser like STX, which I have been postponing successfully for a number of years now ;--(
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mirod
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