I don't really know how anyone can get into things with no animation whatsoever and just plain images
The same thing could be said for "plain text". I like reading both books and manga, so I would say that the above statement doesn't really give the impression that you're the reading type. You see how easily that statement could be misinterpreted into you disliking anything about reading, right?
Anyway, no need to take offense, as I'm sure it was a general remark, not an insult.