this is absolutely ok, but in this case this would be “fair” to make an official statement:
“Dear community, we are focusing on Anroid 6 so we will not fixing bugs on the Android 5.1 Base. Wait until Android 6 came out.!”
But so like it is now is also the wrong way: We have a bug, which is known since 7 Software Releases (7 Month!) but not a single statement about somebody will fix this bug. Be it in Android 5 or Android 6.
Tell me, what should i and the other FP2 owners do, who are also annoyed with the battery-drain-bug ?
Should we wait and hope? Should we buy another phone and forget Fairphone 2?
Simply ignoring and not answering is the wrong way. Apple can make it, Samsung or Google can make.
But when Fairphone will go the same way - they would lose a big part of the community.
Fairphone 2 is great phone, but it has much more problems out of the box comparing with another Android devices.
When cheaper android Devices with the same SoC like OnePlus X can work stable without any problems with battery or proximity sensor, than Fairphone 2 could also be stable out of the box. When the Devs sit down and first fix the most important bugs.