How does Fred know they are power rangers?

im a big power rangers fan and i just found out they put it on netflix...so of course i had to go back and watch the mighty morphin power rangers movie and i saw that Fred (the kid) seems to know that they are power rangers. i dont know if he does or not but at the end he asks them about becoming one and it seems like throughout the whole movie he knows. this confused me because if anyone has seen the first episode Zordon tells the power rangers they have to keep their identity hidden, so if Fred knows then they are disobeying Zordon. i was just curious if anyone else found this kind of confusing.