Hi.
In my personal opinion this is a complex subject that can help Corona conquer an specific sector of the market (people that need/want easy/good results out of the box) but will leave Corona outside other markets like VFX (yes, most VFX studios use LWF). Looks to me that this is already your strategy and it´s working really good so far but i´m also sure you know about the "side" effects.
ArchViz studios probably will love this change because right now we are making this (not everyone) using compresión + custom LUTs (it´s not the best way to do it in my opinion) and can be confusing for a lot of people new to the industry. But i personally think it´s a mistake if you can´t choose, i prefer linear renders because they are important not only for multi pass compositing. You need linear data for comp in order to do a lot of things property like DOF, MB, Glints Glares, etc. and we usually use OCIO or LUTs just for pre visualice the end result but still working in linear during the entire pipeline. Comp operations still linear. If the user can choose i think it´s a good move xD
But i can understand why this can help Corona to conquer the ArchViz market since most ArchViz artist don´t really understand whats LWF or how to use tone mapping properly.
¿And what do you want to use instead linear? because i suppose Corona will keep making light calculations in a linear way so we are talking about some short of internal post-production i can´t control? Something like Shaper Log LUT + Filmic Contrast LUT? will we have several contrast or camera response choices?
About the video from BG i think it´s not really accurate and can make some people misunderstand the problem/solution. Because most of the people are shocking about the "magic" button instead of really understanding what´s going on.
Of course this is only my personal opinion.
PD: if you want to replicate this "magic button" from the video just download the OCIO and use it to color management a Nuke viewer or if you really want to break your 32bpc file and transform it into a 16bpc tonemapped one transform your render into Log using nuke lin2log and apply the LUT from the OCIO pack you can also download OCIO profiles from Sony from the web site. This is nothing new to the industry as Rawalanche pointed, this is old stuff xD
Some people ask me for this on my channel and i make this examples to explain the process (they are in Spanish sorry):
https://www.flickr.com/photos/adanmq/32187170644/in/photostream/lightbox/https://www.flickr.com/photos/adanmq/33032436735/in/photostream/lightbox/Best.
A