If it were me, I would return it and get a replacement if they have it - they should.
That is just sloppiness out of the factory and I would also contact Delta and tell them about it as well
It is a good saw and for the money, I think it is the best in that price point in fact I have 2!
The Dewalt is also a good saw, and if it's still on sale at home depot for $299 that is another good option. (Just checked my local and it is not on sale here)
As for the repair, like you I can DIY some stuff, but not comfortable taking equipment apart - but this repair of tightening the nuts and bolts was easy peazy!
If I can do it, anyone can.
Keep us informed though either way!
Oh and don't give up the ship - this is just a bump in the road.