DOATS1, do you understand how markets work? I'm guessing not, or you wouldn't claim that the loss of the sole innovator in the industry would result in "business as usual".
Unstable markets (ie. ones that sell goods which are not necessities) require innovation to survive, there's no two ways about it. If you do not innovate, the industry stagnates into a cycle of simply improving what's already there, inevitably leading to either overshooting the market or experiencing severe market drift to the point that the market crashes thanks to a complete lack of any improvement (innovative or sustaining). The video game industry experienced the latter in 1984: game developers stopped innovating, all of the new titles were identical in practice, and the market crashed. An innovative intervention, however, revitalizes the market and gives it a new trajectory (which of course also has an eventual overshooting point).
So I ask you, how would it remain "business as usual" indefinitely if the market relies on innovation to keep from stagnation or overshooting? Without the sole innovator in the industry, how do you expect it would do anything besides shrink, crash, and be reduced to niche status?