I've noticed the same, and dealt with more flippers than I care to mention. Seen beams put in with zero footing added, just plop the support on the 4" (hopefully) slab. Saw one where they just plopped it on the top plate of interior wall framing on both sides to support at least 16 feet and didn't add any support, saw another where they removed the dining room wall and put the beam in the attic
on top of the ceiling joists then secured it to the roof rafters with plumbers tape and screws, you can't make that stuff up.
How do you like the ones who say "It's not in the budget, figure out another way" or the ones who haven't a clue about HVAC, plumbing or electrical and don't understand why there has to be a soffit. They think a soffit was put there just for the hell of it and it can be ripped out, I mean why would there be anything in it?
One remodel job I was at the contractor had the room skinned and there was a 3/4" emt in the ceiling heading to the roof top unit, he pointed to the emt and said "you can grab power there". He was a
contractor 
I actually walked on that one.
I felt bad for a lot of people who bought flips then later discovered major issues, actually had 1 where they sheetrocked over an active fuse box and plenty where they buried splices, had one where they spliced all the home runs in the wall with no box and ran them out to the main in seal tight then sheet rocked over all the splices. Home inspector didn't have a clue but when you have a fresh remodel on a 1950's house and the outlets test open ground, all the wire in the house is old cloth covered without a junction box in sight, not even in the attic, but in the outside panel it shows up as brand new Romex duh.
Or the old homes with old 2 wire Romex and no ground wires in the panel yet all the brand new outlets test grounded...hello can you say bootleg grounds? Home inspectors never catch that one either, we catch it after the sale is done and the buyer gets stuck with it.
Don't get me started.