The only solid acrylic stain needing a primer I have ever used for a deck is from Cabot's. They do recommend a primer, their Problem Solver primer. Their solid acrylic deck stain is more like paint.
If I have to use a primer before applying a deck "stain" then it isn't a true stain. It's a paint! I only use oil based deck stains. They penetrate into the wood, as a stain should.
You should ask for your money back from the manufacture. The can should state what system is needed for good results.