Further work is still necessary toward achieving default-fungibility, which is IMO the end goal. Even with Wasabi, you need a fair bit of expertise to maintain privacy, and the vast majority of people are using wallets that are terrible privacy-wise.
There you have it. Your partnership and consulting with a blockchain analysis company to check each coin's history shows bitcoin isn't fungible in their eyes, causing them not to be fungible in your eyes either. 1 bitcoin isn't the same as another bitcoin because you now believe in taint and creating differences where there shouldn't be any.
There aren't any better alternatives for privacy than Wasabi.
It's so private that blockchain analysis gives it two thumbs up.