so...was there a question involved?
there are no hard-set rules when it comes to quilting- there are no quilt police- you can do it any way you want-in any manner that works for you-
sometimes it is recommended to press seams to one side so you can easily nest adjacent pieces & get good points/joins- but people manage to do it with their seams pressed open too- it is your project- your hobby- do it the way you like and enjoy the process---don't concern yourself with how (barb down the street) does it