I think you're possibly seeing what you want to see. Both the fonts themselves and the typesetting of the logos are pretty different. Trader Joe's logo font is serif with all the letters equally sized, the letterforms are curved to avoid right angles, and it is spaced in an orderly fashion, while Pirate Joe's is sans serif with very differently sized letters (e.g. the A and O are about twice as wide as the P), the T completely encroaches on the E to the point where the E has to shrink, the letters aren't particularly curved, and there's a heart in the middle. Basically the only thing they have in common is that they're they're both kind of whimsical.