Yes, a strong current can pull a swimmer away from the original entry point in Komodo. At some sites that movement is intentional and the activity is effectively drift snorkeling: you enter upstream, float with the current, and the boat collects the group farther along. The problem begins when someone separates from the planned drift or moves outside the area the crew is watching.
It can happen surprisingly quietly. You may be looking down at a manta or reef and not notice how quickly the shoreline or boat has shifted. Trying to swim directly against a strong current can then exhaust you without making much progress. This is why guides emphasize staying together and why flotation devices are useful even for confident swimmers.
If you realize you are being carried away, conserve energy and make yourself visible rather than panicking and sprinting against the water. Signal the guide or boat and follow the instructions you were given during the briefing. The best protection, however, comes before that point: enter only when the crew says conditions are suitable, understand the pickup direction, and never chase wildlife away from the group.

