Yep.
A lot of us were unhappy when Google chose to support the MTP (media transport protocol), a Microsoft favorite - in fact, all of us using OS X and Linux.
The Linux community caught up and now the storage transfer scheme is no problem - counting Windows, that's two out of three.
Grab a file manager - X-plore is pretty good - and look at where your pictures are stored - the top of the directory structure is named DCIM - the original standard for digital camera images.
Once upon a time, you could plug in any Android and iPhoto would recognize that.
Four years ago, right after the Tiger release, came an Apple update so that no longer worked.
I have an Olympus camera that worked since the iPhoto beta that stopped being recognized 4 years ago - when Apple decided to shut out Android. Check and search the Apple support discussion forum if you don't believe me - a lot of us were pissed off, while the Apple shills insisted in a stunning display of revisionist history that they never supported that camera industry standard.
My camera was listed FIRST as supported by iPhoto. FIRST.
Why did Apple do that?
iPhone competition.
Why can't you upload files via AirDroid or anything else?
Google is your friend - Apple no longer supports uploads to unknown servers.
Another anti-competitive tactic that used to work in OS X since before the public beta.
Plug your M8 into a Snow Leopard machine and watch Android File Transfer just work.
Plug it into a Tiger machine and watch wifi FTP, WebDAV and AirDroid just work in both directions.
Plug it in to Linux or modern Windows and watch it just work.
I have 6 Macs in my house, going all the way back to Jaguar. I know what they did and when.
When all it takes is an Apple update to increase their anti-competitive stance against Android in favor of the iPhone, it's completely obvious that your beef is not with Google or HTC, no matter how strongly you feel.
Sorry but there it is.
Meanwhile, you're going to have to try the earlier suggestion to transfer via Dropbox or Google Drive.
Just like my wife with her Mac.
She used to just plug in her Android.
Until she took an Apple update.
Why build quality into an iPhone when all you have to do is violate standards from two separate industries and convince people that the evil you did is someone else's fault?
This is from someone who suffered the same thing trying to maintain his legacy film editing on a Mac -
Good luck my friend!
If you don't like the cloud solution and want to know how to run Linux in a virtual machine on your Mac to not let the bastards win and transfer your files that way, let me know.