Online enablers like Redfin have perch from which to observe the market like no-other, hence the reason they can buy and sell in house with competitive technological advantage.
That said, I didn't see any data from the article to suggest what the CEO is purporting "home-buying demand is almost back to pre-pandemic levels." - so going to call BS on that full stop; he has every reason to say this esp. without a "reporter" who will challenge the statement or followup...read between the lines.
Also, these players restarting their own in-house buying programs are simply able to tweak their algorithms to low-ball and who can blame them? Does not indicate a healthy/positive market ahead either...just that they are going be hunting for deals via automated offers...again who can blame them? (Just don't interpret that move as meaning much of anything at this time).
TLDR; this is a marketing piece - give me evidence to support a claim or GTFO.