Well, that's as may be. I am concerned that these minor features will be perceived as missing by users, reducing the success of rollout. So this post. Well, that's as may be. If not, make sure you CYA with the client about the risks of delivering such a product with inadequate testing.
Lets start with the basics here.
If so, then you are able to bump the question up the chain. Simply, point out the list of defects found and let your management make the decision. This, of course, is assuming that you are working on a per hour basis. What I have noticed is that the first line of defects found are those in individual modules - those that are easily noticed with minimal testing. Basically, if the type of problems you are documenting right now are of the first type, then you are not even half way through the bug detection and correction phase.