It seems a bit rich to look at a climate crisis created by current capitalism's "privatize the gains, socialize the losses" approach, note one recent small change nominally driven by a small subset of investors, and then declare investors actually good.
If you count all the times a major oil company made a climate-worsening choice because investors demand profits, and then count the choices like the one you point at, I'd expect it would be 99.9% the former.
And I'll note that the link you give does not include actually "reducing carbon emissions". They're promising to invest more in research. How will they pay for that? Selling more oil. So even if they do the research and even if something comes of it, there's no particular reason to think that on net this choice will reduce total atmospheric carbon.