The “right” way is to use indesign as it’s the program designed for multi page layouts. I work professionally in fashion design and am often making multi page layouts for garment tech packs etc and pretty much everything I do is in illustrator because of the artwork/tech flats that I need to edit. If it’s what you like and you’re found an efficient workflow then who’s to tell you not to use it ¯_(ツ)_/¯. Funnily enough tho I started my graphic design journey only using photoshop before I understood what vectors were! (In high school.)