Air traveller will not fully depend on BMTC vayu vajra while flying out in intermediate busstops, only the one who has lot of leisure time. Air travellers mostly take BMTC to reach home and business travellers and official trips take ola/Uber as they get refund. You can't expect South and West to come to BNC. They should be separate trains from Whitefield, Kengeri via Central Yesvantpur and BNC every hour.