Usually during the spate of tournaments between the AO and Indian Wells the lesser players have the opportunity to make advancements. After Miami and until Monte Carlo/Madrid there's another opportunity. This is how it is throughout the season between the Majors and the Masters.
It is good news that the kids are making inroads.
Still, Djokovic/Nadal hold
65 Masters 1000 titles which is more than all the active players combined -
at 55! Roger's
27 titles account for almost half of that total! Subtract Murray's
14 titles and that
"55" drops to just
14 titles won by the other active players. Lastly, how many Majors have the active players
not named Federer, Nadal or Djokovic won? :scratch

8 out of 60 -
3 each Murray/Wawrinka 1 each DelPo/Cilic)
Well and good to applaud the baby steps being made, but that's really what they are.