I do not understand that reasoning at all, where there is any.

"Evolve with times" does not seem to mean anything. In markets where Starlink is viable, they have no effective competition, and can charge as much as the market will bear. As long as they have more potential users than bandwidth to sell them, they are under no pressure to reduce prices or give up profit. A goal to subsidize Martian colonization provides a very strong incentive to maximize income. We should expect to see very high gross margins until other constellations begin to compete.