The owner of one of the oldest and most respected makers of pipe tobacco blends is willing to engage here and is being straight up about the business, not blowing smoke or telling you want you want to hear, and who else has ever done that. So how about some respect.
You've been hearing for years that square and rectangular tins are not made for nor reliable for long term storage and if you disregarded that information that's on you, not on the manufacturers. Their job is to get their products to market for sale in good condition. What individuals decide to do with the product once they've purchased it isn't the concern of manufacturers.
The whole practice of cellaring is a recent development and its risks and rewards belong to the people who cellar, and isn't the concern of quality manufacturers, who bring to market blends ready to be enjoyed, not "OK but wait a few years". Hence Germain's response to all of this aging as "quit faffing about".