No. It wasn't luck their not paying attention to and then embracing, both barrels, all eggs in the basket that NewTek delivered, strip-o-gram style, right to their doorstep. That's mis-management and bad decision making. That's continued lack of intelligence across two generations of VideoToaster.
They went out of business during the Toaster4000 era and NewTek's expansion into NLE and experiments with supercomputer acceleration for Lightwave when it was still exclusively bundled with the Toaster. The A3000 was already a long discontinued product and not an issue, ultimately. You're talking about a phenomenon years before they went out of business, during the initial VT craze. Plus, enterprising folks got VTs working in A3000s. We had one in the Media Lab at CalArts I'm pretty sure, though I may be confusing that with one of the TA's personal systems. Nothing A2x00-based was viable passed 1993, no matter what you put into it and '030s definitely need not apply, unless you're talking really low end, switcher-only type work.
During this time you had two different interesting phenomenons happening as well, both of which Commodore benefitted from that had no connection to anything (or nothing) they were doing to try and sell Amigas. First, for the original VT, if you were actually using it as a switcher and video effects box the Amiga was essentially just a power supply for the thing folks really wanted to be using. So you had a lot of people who wouldn't have otherwise bought an Amiga, or computer at all, doing so just so they could run the VideoToaster and do what it did. Then you also had people buying VideoToasters, and Amigas, with no interest in the video switching capabilities of the Toaster whatsoever and had it functioning, basically, as a dongle for running Lightwave which, for a period, had no peer on the microcomputer level.
To still not get it, two years after the A3000 is discontinued, they simply failed to understand what was actually being done with their own product which meant they couldn't capitalize or expand on that. That's got SFA to do with "luck". That's what you call "stupid".