Nobody was talking about them betting too much on compute, people were saying that their shady deals on compute with NVIDIA and Oracle were creating a giant bubble in their attempt to get a Too Big To Fail judgement (in their words- taxpayer-backed "backstop").
That’s just short term talk. The main thesis behind their collapse is that they won’t be able to pay their compute bills because they won’t have enough demand to.
That doesn't really track because their compute isn't like a debt obligation.
The compute topic was more around how OpenAI, Nvidia, Oracle, and others were all announcing commitments to spend money in each other in a circular way which could just net out to zero value.
By far, the biggest argument was that OpenAI bet too much on compute.
Being unfocused is generally an easy fix. Just cut things that don't matter as much, which they seem to be doing.