Laying people off offsets some of those expenses. Eventually revenue has to climb.
The reality is many of these tech firms have reached the peak of what they can offer - Meta and Google still have some ways to go with existing assets pre-LLMs that can generate lots more cash flows. So the sobering truth eventually will be that this tool seems really great but its not going to make the firm seem more productive in terms of its financials, beyond efficiency-generated growth which is finite.
And whether you like it or not, thats the only thing that matters. The firm exists to maximize wealth of its stockholders.