That said, the technical problem is hard regardless. Direction-finding equipment can locate them. Moving helps but you are broadcasting position whenever active. Military SATCOM (MUOS, AEHF) uses frequency hopping, directional antennas, burst transmissions, techniques Starlink was not architected for.
The mesh idea has a bandwidth mismatch problem too. BLE tops out around 1 Mbps; Starlink pushes 100+. You would want 802.11s or a MANET protocol, but then you just have a cluster of RF emitters pointing back at the terminal anyway.