The general consensus amongst believing Christians is the 2 witnesses are 2 actual people that will preach in the capital of the Antichrist,Jerusalem, at that time.Their 3 days death mirrors Jesus death of 3 days and looks like the Antichrist(=final world ruler) will let them rot in public display mocking their connection with Jesus Christ.
Watchtower's interpretation is based on EISEGISIS mentioned earlier and has nothing to do with the context