The Intel HSFs aren't *that* bad. The Pentium G2120 in my VMWare server has been going more-or-less non-stop for over 3 years on the stock Intel fan, it's already killed the fan in one PSU.
I'm still using the stock HSF on my i7-6700 too. I've got a Corsair H-90 ready to go in, I only put the Intel one on to check the rest of the kit was working. One day I'll get around to taking it to bits and putting the Corsair in, but the Intel is coping well so far.