I love the open discussion about Android's weakest point and I appreciate opinions from all side, in particular those from inside Google -- but this uncoordinated communication on G+ addressing problems w/o delivering a solution damages Android's image to some extent.
Still, I don't have experience with iOS devices, but my Nexus S tends to be so laggy at times that apps crash frequently. (I had attributed it to GC).
This sounds more like poorly written apps than an issue from the article.
For example if you are scrolling a list view and it slows down to the point of crashing, the application probably isn't caching views or has a memory leak (application authors fault).
If your device gets sluggish and you get miscellaneous force closes I would look for applications with background services that are doing more work than they should be.