I think the post pretty speculative, given the past and current efforts of Microsoft to get together with OSS and Linux community; using a single slide to come to a conclusion of "Microsoft stopped doing that or has been lying about it" is very speculative.

I think we should give credit where it is due, MS is really trying to work with OSS community.

Also, a lot of enterprise customer would want always on secure boot, and it is up to OEM to decide whatever they want. How is this MS's fault?