Yes, it is opening up but you are being a little unrealistic. They do have their reasons. The average "knowledge worker" today, is not self-correcting and self-motivated enough to stay on the line of productivity.

That being said, it looks like you've made a mindset that autonomy of time is a sure-shot metric of the quality of a company. It is true, to a great degree, but the implication isn't reversible. Some of the best work in the world is being done by people with more or less fixed timings.

Don't let the timings and work-from-home option mark your final judgment over a good firm. There is so much more to it.