I agree to some extent but don’t underestimate how much this has changed in the cloud era: it’s never been cheaper to run multiple ISAs and a whole lot of stuff is running in environments where switching is easy (API-managed deployments, microservices, etc.) and the toolchains support ARM already thanks to phones/tablets and previous servers - so much code will just run on the JVM, high level languages like JavaScript Python, or low-level ones like Go and Rust with great cross-compiler support, etc. and hardware acceleration also takes away the need to pour engineer-hours into things like OpenSSL which might have blocked tons of applications.
At many businesses that is probably over the threshold where someone can say it’s worth switching the easy n% over since they’ll save money now and if the price/performance crown shifts back so can their workloads. AWS has apparently already done this for managed services like load-balancers and I’m sure they aren’t alone in watching the prices very closely. That’s what Intel is most afraid of: the fat margins aren’t coming back even if they ship a great next generation chip.
Some function gets vectorized and a variable shifts in or out of a register? Or one of your libraries gets rebuilt with LTO / LTCG and its functions are inlined.
If your code was wrong, any of that can ruin it and you're left trying to figure it out, and requiring your developers to use exactly one point release of Visual Studio and never, ever upgrade the SDK install.
Being cheaper isn't enough here - Graviton needs to be faster and it needs to do that over generations. It needs to _sustain_ its position to become attractive. Intel can fix price in a heartbeat - they've done that in the past when they were behind. Intel's current fab issues does make this a great time to strike, but what about in 2 years? 3 years? 4? Intel's been behind before, but they don't stay there. Switching to Epyc Rome at the moment is an easy migration - same ISA, same memory model, vendor that isn't new to the game, etc... But Graviton needs a bigger jump, there's more investment there to port things over to ARM. Will that investment pay off over time is a much harder question to answer.