My grandmother would make quilts out of recycled fabrics.
By the time she got around to using these fabrics in quilts, they had been washed many many times.
The "batting" was usually recycled fabric, also.
These things ended up FLAT! They did NOT pucker up when they were washed.
They were intended to be used. She usually tied them.
Admittedly, my Grandma made some "roundish corners" - but she did get a lot made.
In fact, looking at one of Kaffe Fasset's books - my first impression was - that looks like one of Grandma's quilts. (Which I thought was kind of ugly at the time)
So if one is going for "the old fashioned look" - puckered is not a necessity!