Most meat flavours of crisps are vegetarian friendly I've noted, it's the cheese flavours vegetarians have to look out for as they have rennet in them.
I guess 'meaty' can mean absolutely anything really. Hence 'Beef tomatoes' and people's tendency to call mushrooms 'meaty' in certain recipes and the like lol.
If it had have read 'Meat Crisps' you could have kicked up a legal fuss though
