Sometimes, winning a championship requires a little bit of help from your team. Especially when championships are tight. A little help from your teammate, perhaps persuaded by a quiet word in their ear from the team boss. Who knows, maybe even a little financial sweetener to help swallow a bitter pill, a cut of a win bonus. It helps if you and your teammate don't actively despise each other, of course.
Team orders are something of a taboo subject in motorcycle racing. Journalists, riders, teams all pussyfoot around the issue, while fans speculate like mad about which results were down to riders doing what they were told by team bosses, rather than putting it all out on the track. With no ship-to-shore radio communication, the only methods of communication are via the pit board, and since last year, via a list of permitted messages on the dashboard.
In a way, not having radio communication has led to more speculation about team orders, rather than less. Because pit boards are visible to other teams, and space is necessarily limited, the messages tend to be both terse and obscure. Valentino Rossi is forever being asked to explain what the letters BRK on his pit board mean. Dani Pedrosa is in a league of his own in this regard: at one point during a race, the word DOGMA appeared on his pit board. At another, the letters ZZTT were shown at the start of the last lap.