Problem is: no one wanted it. So none of that panned out. If it had gone on to be something like Intel’s Core 2 Duo that showed up everywhere in hindsight it would look smart.
Apple wasn’t a great example but it was the best I could think of. It took Apple 10 years to go from the A4 in the first iPhone with an Apple chip to the M1 in the first Mac. They also were just using Arm, the same instructions that they had been using before and something well understood.
They didn’t suddenly release something people weren’t really prepared for like a Transputer and just declare “this will be everywhere within three years“. They let the switch take its time as necessary.
Sony had the arrogance to do both of those.
Also, the PS3 did the same for PS2. Sony eventually did away with that to cut costs, but the launch models had it.
Apple switched to (and largely invented) ARMv8/AArch64 in the middle of that, which is very different from the ARMv7 they started with.