Having had a similar experience with a titanium frame (not Kinesis), supplied with one big and various small defects, I returned it and insisted on a refund. All confidence in the brand had gone - if they could let a frame go out in such a condition, what else could be lurking and why should they have my business? I believe Kinesis frames are made abroad and I wonder who will be repairing the bottle boss - as far as I know there are only two or three Ti cycle welders in the UK and I can't see them bothering with this. At the very least I would expect a new frame, plus some recompense.
Having now bought a Mason with a front TA and rear QR, I can't see a problem with it - something new to get used to and then you forget about it. The lever on the TA can be set to close where you want it to. Mason Hunt wheels (and others) feature a range of hub inserts to suit QR and TA so they can be swopped out if required if moving between different bikes and specs.