I've posted a picture in the Oliemolen-gallery ( the Netherlands ) with the title 'parrot-keeping the wrong way'. I guess this 'enclosure' deserves the same title !
All those flower beds seem to do is just make the area around the birds more attractive. It doesn't change the puny size of the bird's exhibit, so I don't mean to be rude, but that doesn't sound too "positive" to me.
That "exhibit" probably hasn't changed in over 30 years (except they used to have macaws on the stick): but I will say I liked the old landscape better