The owners of TBS are best served if the only stuff on the shelves in either store is Macro.They don't actually need to care if you buy your beer in the LCBO or TBS, since their profits are similar either way. What they really care about is limiting access to alternatives.
I feel incredibly stupid for temporarily forgetting who owns TBS - it all makes sense now. Was this access vs. selection trade-off expressly disclosed as part of the agreement to allow beer sales in grocery stores or are we speculating that it must have been a condition given the downward tick in the L's recent selections? Either way it reeks of anti-competition. Par for the course in the world of Ontario beer sales I suppose.
I was fairly agnostic on the whole beer in grocery stores thing - it's not difficult for me go to an LCBO to buy beer and I didn't anticipate any of the big grocery chains carrying a selection that I found particularly interesting. Given the price of access is selection, I am firmly of the opinion that we're worse-off under the new regime (and yes, I appreciate that I am being a little Toronto/urban-centric in viewing things through the lens of having easy access to a lot of good LCBOs).