At the moment they are selling DTC 16 oz bottles for $20-25, which is very expensive.
5 gallon restaurant supply bottles of oil go for $40-45 for the cheap sludge, and $60-65 for the regular high oleic.
The Shake Shack is only a couple locations. I think the low saturated fat AND low linoleic will lead to inferior food taste, and that Shake Shack customers are not their for health. Overall, I am skeptical on them being able to make that leap if they don't boost saturated fat somehow, and even then, market is very price sensitive.
Idk what the economics of bioreactor are like, but my guess is they are just trying to match beef tallow on price.