It's all about quarterly results
Too many companies (in my experience) are driven by their quarterly results. Who cares about the long term if they have been fired because their division did to make some stockbroker's (entirely unreasonable) financial targets?
So they cut today (drop support, cut staff, outsource to the lowest bidder) in an attempt to keep alive until tomorrow, Lather, rinse, repeat. Soon their costs are close to zero, profit MARGIN is up, but actual cash in the bank is dropping like your average manager jumping off a tall building.
And then management can point to their "fiscal success" at cutting costs and move on to an exalted position at the next company, while everyone else suffers through the inevitable bankruptcy and/or acquisition.