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It's thankfully of minimal concern to me for the most part. I'd be more annoyed if they introduced lower spec MTB Di2 stuff that I couldn't use with Ultegra or GRX because "no reason". As it stands I've just not bothered and now I'm testing SRAM AXS on my MTB anyway so they're gonna lose a loyal customer, at least with MTB kit, because they're too damn slow with trickle down shit for MTBs.
History tells us that's a forlorn hope.