Plenty of examples where it does not work.
Here are some more:
10Gtek: ASF-10G2-T and ASF-10G-T, former works, latter doesn’t
http://forum.mikrotik.com/t/strange-issue-when-using-sfp-port-compared-to-ether1/179744/1
FoxGate XPON SFP ONU 1001XP-SFP
Works on Hex POE but not on L009
http://forum.mikrotik.com/t/sfp-module-working-on-hex-poe-but-not-on-l009/180592/1
Planet MFB-F20: doesn’t work on CRS112
http://forum.mikrotik.com/t/compatibility-with-fast-sfp-ports/180621/1
ISP Altibox using SFP-BX-U31: doesn’t work
http://forum.mikrotik.com/t/rb5009-sfp-altibox-fiber/180382/1
This comment says more or less the same as what I already indicated:
If it works for you, fine.
But don’t ever think it’s going to be smooth sailing each and every time … everyone needs to keep that in mind.