Wow, I didn't expect so much backlash on this.
As you grow older, your interests change. That's not to say they don't want to make music anymore, but they want to expand their horizons. In 10, 20, 30 years, will they still be making music? Maybe not. They can't depend on however much money they have now to support them so far into the future (which, I admit is kinda silly to say, they're filthy rich, probably). The thing is as life goes on, Linkin Park will start fading into the shadows. You have to be open to try things, collaborations is one of them. Being in a band shouldn't have to limit you to making music, and only making music as your career. They're not in their 20s anymore, they'll be in their 40s soon enough. We can't expect them to not want to branch out to something more "mature".
Sure, they're collaborating with a watch company and a car company. It's marketing. So what if less than 1% of people in the Linkin Park fanbase will never get that product? It's still being marketed. Don't forget we're not the only market. The fans of THAT company, and hell, people who like those types of products will still be looking at it. All we are is a source of advertising, when
And if you're arguing it makes them look like they "just want to make more money," well, no shit. They make music a) because they love to and it's their job. Without money, they can't keep touring. They can't keep making albums. They can't put food on the table. They're filthy rich, but how far can that last if the only rely on Linkin Park? Anyone who wasn't a teenager from 2000-now probably thinks they're shit anyway (as evidenced by quite a few sources), but we can't expect that, as growing individuals and a band, that they're influence has to be entirely focused in one area.
With Machine Shop changing its course, Linkin Park isn't changing. They'll be the same band they are as they continue to play shows and record music. Machine Shop is still innovating, much like Linkin Park has done since Minutes To Midnight. The purpose is still to promote connection with music.
TL;dr: Priorities are not changing. Linkin Park will keep creating music as they always did. You guys are equating branching out to other projects to lack of quality in their music. It's simply not happening.