T-Mobile US Inc. (NASDAQ:TMUS) CEO Srini Gopalan dismissed the threat from Elon Musk’s planned Starlink Mobile service as "exaggerated," questioning why consumers would leave established carriers even as SpaceX (NASDAQ:SPCX) promises higher bandwidth, satellite coverage and a terrestrial network aimed at winning customers from T-Mobile, AT&T Inc. (NYSE:T) and Verizon Communications Inc. (NYSE:VZ).