Very stupid or very clever
It could readily be either. There’s a logic to sending out intentionally poor spam, because it filters out the people who are likely to go “hang on a minute” further down the line. The spammer doesn’t have to waste any real actual time on you just to find out that you’re not going to fall for it. Whereas if you’re gullible enough to fall for something that lame, you’re probably exactly the sort of person that’ll think “well, we’ve already paid x and it’s only another y” and keep sending them money for “release fees” and whatever crap they make up next.