Do you think it would be silabbata paramasa for a Bhikkhu to devote time to formal meditation? How about for a lay person to meditate, but not "vipassana", say - Brahmavihara meditation or recollection of the Triple Gem? How about bowing or attending puja, chanting? Where is the line between formal and non formal practice anyway?
I ask this to get a clear understanding of your opinion.
Anyway, couldn't one argue that formal sitting practice helps build concentration thus making "mindfulness" (in conventional terms) clearer?
"If beings knew, as I know, the results of giving & sharing, they would not eat without having given, nor would the stain of miserliness overcome their minds. Even if it were their last bite, their last mouthful, they would not eat without having shared."