You can't obtain the optimum benefit of graphical engineering with SysML without becoming mindful of the cognitive and artistic aspects of graphical modelling.
This is not fluffy "esoterics" it is a very practical matter!
Most engineers accept without question that there is practical efficiency in an elegant, beautiful, electronics device design; it is no different, at all, for MBSE with SysML. The "Zen of SysML" matters!
Many of the best Webel modelling strategies are collated at: