It seems to be a quite individual thing. The craziest razor I have as far as blade alignment goes, is a little cheap Turkish made aluminum or zink alloy DE razor called YUMA (see photo). I'm telling you, it's crazy out of whack, and yet I get the most fantastic shaves out of it. I don't even bother looking at how the blade aligns before shaving, I already know it looks crazy. Yet I consistently have outstanding shaves with it. So at least for me, "blade alignment" is not an issue.If I can visually see the blade is sticking out on one side more than the other, this alters my experience with the razor and produces inconsistent performance. I did put some electrical heat shrink tubing on the posts to make them a tiny bit bigger and this worked, but seems I shouldn't have to (the top cap mold needs to be improved IMO). Maybe it's just me...
This is just my most extreme example. I have several other razors which I think consistently deliver excellent shaves, and which I often see are taken to task for "blade alignment" issues -- the Fatip OCs is a good example. People will go on and on about poor craftsmanship and blade alignment issues with Fatip razors ... and all I know, is that they deliver outstanding shaves. So I have sort of come to see ugly blade alignment as a pretty thing almost, -- a bit like a "pigtails and freckles" girl you underestimated in you teens, but later came to "see the light" .... ;-)
Blade dis-alignment is a sign of character..!