The Inflationary Model works backwards from current observations, so one is hardly impressed that it matches what we observe today.
Rather, it's problems reside in explaining expansion rates increasing massively, slowing, then still increasing at ever faster rates in between galaxies...while seeing no expansion inside our solar system or between atoms in any stone on Earth.
The galactic clusters are precipitations within former random quantum variations and fluctuations that were made permanent and large by the cosmological inspiration of inflation.