Nope... this stuff is 96.5% copper, and copper is ~3x as expensive as stainless steel. Even if tantalum and lithium were free, it would be substantially more expensive. Tantalum is not free, though. It's a very expensive material at about 100x the cost per kg relative to stainless steel, so it nearly doubles the cost of the raw material inputs by itself with its 3% contribution. The process of making this alloy is also likely to be expensive.

I'm also not sure how much being in an alloy would impact the antimicrobial effects of copper.