As someone who works in marketing and does a lot of testing with different marketing content, materials etc. having multiple tests after revisions isn't a bad thing nor necessarily a sign of insecurity. It's important to test, especially with multiple audiences because something might hit well with one test group but completely fall flat with another. So you take what worked with both test groups to create something that appeals to both. You never walk out with the first round and just go with that without testing across multiple segments.