I don’t think a single exclusive thing on d&d beyond matters of itself. The real concern is the signal it sends that this shift in direction has a chance of becoming predominate. That's what people are reacting to. There's certainly a way to thread that needle, but it can be a fine line.
I'm not sure how younger generations feel, i suspect they find such practices more normalized, but I think my generation and older will react very negatively to that kind of change in direction.
I don't buy the slippery slope argument. The things that have been online only are things that otherwise would never been available to anyone anywhere. Printing and distributing a pamphlet sized book of short adventures simply is not and never has been an option. We can either get a digital version or nothing.
To me these online resources aren't much different than the blogs, news articles, entertainment I access online every day. At one time if I wanted to discuss D&D I had to sit down with someone in person to do so, if I wanted news I had to buy a paper or get a magazine. As far as it being a generational issue I don't have a problem with it and I pretty much guarantee I don't qualify as a younger generation.
Last but not least there is still no indication of anything turning into a true walled garden. You do not need to have a paid subscription on DDB in order to purchase anything they sell digitally, anything that has enough content to be sold as a book is available in physical format in many places and DDB is not the only place you can access them digitally.







