Dear Professor Dan,
Excellent point!
The fish is an ancient symbol that represents Christ and was especially used during times of Roman persecution of the Church.
In addition to comprising the letters of a Christogram that, together, spelled "fish" in Greek, the fish symbol was also a Baptismal and Eucharistic one.
The fish goes into deep water, and yet does not drown. Fishes, along with bread, were multiplied to feed the thousands by our Lord.
The problem here is that journalists who venture to comment on religious topics often have little religious background to deal with them adequately.
Unlike Tim Cuprisin though!
Cheers,
Alex