...i think you may find adobe a bit miffed as you are with this one, they will likely say that a baseline grid needs to be implemented as any other magazine publisher utilizes in the production of column based layouts. Typesetting, even with digital assistance, does require a certain level of skill and know how...
...the flexibility of indesigns typesetting functions are in truth very unrestricted, if typesetting appears to be unpredictable, capricious then the setup will always need adjusting to suit the desired layout. These adjustments are available in both the grid preferences and also text frame custom baseline options, very much a flexible solution to create consistency and readability. I'm yet to work with a publisher that doesn't use baseline grids...
...if you turn on the custom baseline grid and set the first baseline offset to leading you will have a much better finish than without...
...it's a balance between the size of your wrapped object, the increment spacing, the length of words in that area and the wrapping offset...
Andrew