Indifference shouldn't be surprising for a minute detail. I didn't even know about the feature until I saw this thread (clicking address bar expands it), since I normally immediately start typing once I open a new tab.
I'd even argue that indifference should be the goal when making design changes; make subtle changes over time instead of the complete overhauls that are common today.
It is possible to fix UI problems without people noticing.
Also, people quickly get used to suboptimal UI and all kinds of UI bugs. Fixing those bugs improves the experience for new users while acclimatized users will be indifferent or even hostile to the change. It's a classic dilemma for long-lived products.
I'd even argue that indifference should be the goal when making design changes; make subtle changes over time instead of the complete overhauls that are common today.