I've seen several publications in the last 5 to 7 years which suggest less nutrients in plants grown in higher CO2 containing atmosphere. For both outdoor and indoor. IIRC the useful nutrients are dispersed in more plant mass, which amounts to dilution. Why it is like that, I don't remember anymore.
Suppose that one thing you like to do in your leisure time is swim in lakes, which can only be done in summer. Now suppose that your work schedule changes, so that you have additional vacation time in winter, in addition to the leisure time you had before. Do you say, "Great! Now I have more time for leisure activities!", or do you say, "That sucks! The proportion of my leisure time that I can spend swimming has gone down!".
