No one did this for a flip. This reads as someone who really likes purple. That floor and countertop cost extra and someone flipping wouldn't have spent the money on that. A flip would be boring brown or gray with the cheapest materials and crappy workmanship.
Also their 'renovations' usually just need to be taken out or repaired to normal by the buyer as they rarely use proper licensed tradesmen, or check to see if what they're doing is even sound for the building. I've seen a center brick fireplace, clearly holding up the roof, just ripped out and plastered over.
They also built the existing garage into a bedroom only accessible through the back of another bedroom. I get building a hallway is more complicated, but unless you wanna feel like you're going to Narnia every bedtime, it's just not gonna be a sell point.