In the safe yes in my brain no. Only time I use moa is my group size. I've got one moa scope but it's on my ar and it either gets used as a red dot at 1x or for longer distance at 6x and my holds are in my scope cap
They'll make it right. Sold a buddy of mine a diamondback and it had a problem they fixed him up within a week or 2. I've never used their warranty but anyone I've heard of that has hasn't had any issues