Although I agree that touch to join could be useful and I know a few people do use it I can only speak from my personal experience and my experience in the store. 

Because I have so many products on the system in the store I often found that touch to join was flaky a lot of the time for me, despite setting defaults in the setup things would often join to the wrong product and you would stand taping and waiting for the silence before it found another product to join. By time I had found what I wanted I could have grabbed my phone and joined them together. Altough this probably works better in a smaller setup. 

I rarely demonstrated this feature as couldn't be sure it would work properly. I can only change and adapt to what B&O release and make the best of it then adjust how I demonstrate products to customers. 

I totally understand why people are annoyed it just went, without warning. I wasn't even notified and found out myself only to have it confirmed when I called B&O thinking there was a problem with my Beosound Balance. This I agree was poor form! 

For new customers coming in they will know no difference, this is just the way it is now but it is irritating to the 10% (a B&O usage statistic) that did use the BeoLink. 

So, I think it could have been handled a little better but I also understand from B&O's viewpoint that it's not cost effective to keep developing and updating something that they claim 90% of users don't bother using. 

I agree that sharing line in sound around multi-room was very good. From my experience selling the products line in was again very rarely used and even more rare that it was used then piped around a multi-room system. Same with TV sound, with some TV's there was always a delay depending on the source and I always got the impression that it was never really meant for TV sound and it was focused towards music distribution anyway. It was kind of a happy accident that TV sound would work as well. 

In summary, I wish it was still there for the people like yourself that got enjoyment from it but I do understand why they made the decision to pull it and ultimately I can only work with what B&O supply to me so I have to adapt with what they decide.