In fairness NGFM, modern machining and blueprinting technologies have radically minimized the need for a 'proper' break-in period and by extension that first important oil change.
However, you still made the correct call. With used vehicle prices being so inflated, a 1 year old used one doesn't eat up remotely as much depreciation as it once did. It's much nicer to start fresh when the savings are so nominal.
Also, I worked for Mazda and can attest they build rather reliable vehicles. Their SkyActiv model lends itself to a better amalgamation of performance and efficient without sacrificing reliability. Well done and congrats!