sounds like it's more to do with the placement of Y+ on the A330, the crew do a combined service beginning with Y+ and rush through that then are centralised at the galley so are as far away from Y+ as possible, minimising walk-throughs.

I experienced this on SYD-HKG but found they answered the call bell very quickly and were prompt to bring me drinks whenever I wanted. it was actually nice not having people tramping through the cabin all the time but understand it does get a bit lonely - ideally they should serve Y+ from rear J cabin I think.