The problem is that most voters think he has control over it. Therefore he has to act like it. Act like he feels their pain, act like he cares, show what they are doing to address it. It would demonstrate to the voters that he's working to address their critical concerns.You definitely don't talk at length about something you have minimal control over, in this case inflation. You just look like you're making promises that you can't keep.
The administration only has the ability to chip away at inflation, they don't have a direct means to manipulate it. The problem has always been and will always be that people don't understand that the state of the "economy" is broad and does not affect the average person directly or immediately outside of unemployment. People feel the way they do about the economy purely based on anecdotal evidence of others parroting what they hear and consciously/unconsciously missing the extra income the stimulus provided.
You have to remember that most voters don't know anything. Their motto is when somebody goes wrong, blame the President.
You shouldn't be dismissive of their feelings. Voters feel the way they do because they go to the grocery store and shyt is more expensive than it was 3 years prior. And rent + gas has been more expensive. That is the economy to them. Which is why Bidenomics falls on deaf ears. It doesn't resonate with what your average person goes through on a day to day basis.