[a-posteriori]

Market-share is a cumulative metric, representing the sum of all purchases over several years. Sales is a flow metric, representing the sum of purchases in a given year. Market-share can increase, yet sales can be down in a given year.

Not everything is a conspiracy.

[agloe_dreams]

Sales were actually up, the title is just wrong and is editorialized by the submitter. The article has a different tile.

[ianai]

It changed since they submitted the article. No need to assume ill will.

[Aqueous]

However, it would also be folly to assume good will.