To be fair, this is like saying Legos aren't appropriate for building a house or a pocket calculator isn't appropriate for analyzing a particles accelerator -- simple tools are great for their intended use case but you need much more advanced tools for complex scenarios.
With that said, I agree that emulating playing cards is tricky, I'm curious what you used. I built https://play.cheatatbj.com using ZimJS (whose web site looks kind of like a joke but is actually a very impressive animation framework).
