I don't know who is at fault and I'm no one to pass a judgement on that.
But it's true some microphones do not play nicely with Apple's systems since 2013, it reached the peak with the 16 inch MBP clearly targeted to a segment who deal with audio/video. I don't know if it's the T2 chip or what but some very popular ones from Shure and Neumann stopped working. I witnessed at least 2. In the second studio the techie guy is working for 5 years or more, he even fixes old Lexicon reverb units. Even he couldn't fix the mic issue.
Ableton is not worried because most of their customers on older Macs and PC is very happy with the Live 11.
Apple is still struggling with their own LPX, how can you expect Ableton to deliver a flawless product? Everyone thought rewiring will break, but it's working with LPX being master.
It's purely my guess and I may be completely wrong...companies like Ableton, Steinberg, Native Instruments and Avid ( equally adamant like Apple) will do nothing to make M1 native softwares unless these chips show up in iMac or Mac Pros and studios start buying them...that day may never come if Apple keeps on making Intel machines for their bigger computers. That will be a disaster for small home studio owners who can't afford a Mac Pro.
It's possibly a lot of work..so much so that even bigger companies like Native Instruments may struggle to recover the cost.
Ableton is an extremely smart company. Live 11 was possibly the most anticipated DAW this year. This is the first time they have a proper comping available ( and boy!! They implemented it so nicely!!!)
They must have had some sort of market survey of what percentage of M1 Mac users are using Ableton ( given the quality of Ableton videos on M1 Mac it's clear not many is using it for a long time or just using pirated version...in India 95 percent of Ableton users were using cracked Live 10 and Ableton has no issues with piracy)
But it's my imagination running wild..
The dropouts plaguing audio interfaces on Macs with Apple's T2 chip involve an overload of a USB bus running in the slower USB 2.0 speed, according to an Ableton-certified trainer.
forums.appleinsider.com
That T2 chip is not so innocent after all.