Lol I have a dyson but I also have a mini cinnamon broom for symbolic use in ritual should I need it - smells gorgeous! I think it is probable that the witches broom served a wide variety of purposes, cleaning physical dirt being one and then used in fertility rites - at handfastings couples are known to jump over the broom as part of of after their ceremony, used to clean up negative energy, as a wand, staff and anything else as the witches of old would not have had the luxury of having many magical tools openly displayed and a broom was seemingly an innocent item found in almost every household back then.
I dont tend to get too caught up on what people used to do, more what is suitable in this day and age but I do find it fascinating to think how they may have worked their craft.