Pure Storage works to dumb down storage and make it like Apple. It's basic and lacks a lot of features. Part of performance is due to it not having those features but as it grows over time it will then become bogged down with the rest of them. Additionally Pure Storage needs the high revenue in order to keep working towards cash flow positive.
It isn't likely or a good idea to purchase a company which has no substantiation or basis for actual growth. Hence why they work so aggressively to troll competitor's products and trump up their own product. Issues arise but what Pure lacks or doesn't state is the fact they too do have layoffs but just quietly in small numbers all the time so tomorrow you might not have that coworker sitting near you as they will be canned but it's below thresholds.
Their SAN FlashArray product lacks features competitor's have and long term to grow this will lose out on performance. NAS FlashBlade has performance but lacks a lot of features such as backups, replication which will need to be added over time (and even then will be behind the competition).
While in theory it is possible for a company to buy out other companies it's probably a result of disinformation that causes people to believe a company is doing well or not. Due to Pure Storage not being cashflow positive; they're rated to have a financial bankruptancy concern of 40% in the next two years. Their stock or portfolio unless complimentary to other companies' portfolios, marketing/networking contacts on sales and potential for expanded growth is the determining factor and choices for this are low as primary companies that could consider this either have overlap which will not work requiring products to be merged and layoffs (sales/HR first) or selloffs to proportions to look at.
In the same case; NetApp has assets and is cashflow positive. So in this case, NetApp at least puts itself in a position to be able to be stable with confirmed growth/income vs. no income and entirely reliant on expanding, future products and keeping sales prices at the highest costs possible (which Pure Storage lacks the capability to compete on large storage spaces at better prices).