Maybe the restaurant needs a better expediting system (if there is even one) or more crew to look after a quite sizable dining area. The acoustic band can only entertain so much, but at some point, food should already be flying out of the kitchen.
While the Philippines is not yet a 'cashless country,' I still think that innovations such as this especially in the restaurant industry, is a good first step in the right direction.
The name Tangub indeed has gone far beyond just being a Subanen word for a big bamboo basket for storing rice. Today, it would mean Christmas symbols, a dance troupe and a long zipline ride.