Not only would it be funny, it would provide the much deserved mockery of the replaced NPC line.
It would also help validate the awkward pauses in NPC ''pvssyr'':
NPC1: I heard you like mudkips
NPC2: .. :blink:
.....
I imagine it would place a few smiles where frowns would be whenever an NPC asks about mudkips instead of commenting on mud crabs.
And all that for the low low cost of voice acting one line and replacing the original (not sure if it is possible to replace that ''pvssyr'' dialogue though.
I know I'm being awfully whimsical, but... hey, what can I say, I AM being awfully whimsical.
Not necessarily a serious suggestion, but I still thought it would be funny to propose.
(edit: Perhaps ''I heard you like mud crabs'', for immersion's sake )