I totally concur with you! These are my opinions and experiences as I find kissing significantly more intimate than penetration. Kissing for me only happens when the moment transitions from purely sexual to extremely erotic, and the entire dynamic shifts to include emotion. I personally find this enhances the physical because we are connecting on multiple frequencies.
I will say that the build up to that moment is critical, and a full on frechie may be unpleasant without the cues. (Think that nuzzling on your neck, the gentle nibble on your ear, or that intentional brushing of your lips against one another). For me a kiss requires mutual yearning to intensify arousal as things are fucking amazing...
However I've also experienced the most passionate kiss the moment I stepped through the door while fully clothed, this I feel requires a particular type of desire to take charge and control. (No complaints from me!)
I respect certain couples having this "no kissing rule" for me indicates they may still not completely comfortable with their own sexual dynamic which to be fair is constantly evolving OR they've had some terrible experiences regarding oral hygiene.
In conclusion, Yes kissing is amazing but not strictly required for an ultimate play date...π«¦