The "not commercial viable" line is a complete cop out. Its not viable for a club the size of Oxford to produce 3 different goalkeeper shirts from 3xs up to 3xl. These almost certain present a loss when sold off at the end of the season. But they are still produced and available for all age groups.
Nike make huge profits every year from the sale of football shirts. We're talking about making a shirt for the current European Champions, and one of the favourites for the World Cup. Not only that, but Mary Earps was also voted FIFA Best Goalkeeper in the World last year.
If they produced a couple of thousand and didn't sell a single one, it still wouldn't make a fraction of a percent damage to their profits. In fact it would represent less of a loss in profits than they get from shirts being misprinted or damaged during manufacture and never leave the factories.
Womens sport shouldn't have to achieve parity with the mens game to be treated equally. That's the equivalent of saying that manufacturers won't make Oxford shirts because they don't sell in the same number as Man United shirts.
The women's game is growing hugely and needs to be supported as it grows. Nike have failed in this and there is no excuse for not putting this shirt out.