I assumed you meant the dormers on the second floor not lining up with the windows on the bottom floor. Otherwise I dont know what you mean. lol.
The long garage is 15.5x36' and the 2-car is 25x40'.
So about the garage being long. It's like that in the event I need to store the boat, trailers, etc. But all the way in the back I will have my lift there. I dont wrench or work on cars all too much, it's just a storage solution to be able to keep my nicer car up and away from anything touching it.
We opposed to a formal dining room, but when we saw more modern interiors, it looks like they integrate the dining room as a go between of the kitchen and the great room. Since we only use it during family gatherings, this allowed us to keep it in line with the kitchen and the main entertaining spaces, which to us was more ideal.
We did consider putting laundry in the master closet or near the master, but my wife doesn't want to have a "work area" where she is cleaning sheets, towels, dog stuff, clothes, etc, anywhere near the master. She wanted a work space that would have a sink to soak things, clean, etc and it be away from the master "retreat" per se. As a retiree, if my biggest concern is walking 50-60' to the laundry room, I think I can deal with that.

It also keeps the laundry near the lake side of things which is where most of the messy stuff comes from.