You snark, but that is what the world expects - a grid gives the user a simple, tidy, and consistent layout across the whole of the app. It might be "boring" and it might result in an "all apps look the same" world, but it's hard to challenge when users claim they enjoy, and are willing to pay for, apps built with it.
Also, the whole "every app looks the same" opinion is only true if you're a developer or a serial startup beta tester. Most actual users who'll pay for your product don't see that many SaaS apps, so they don't realise so many apps use Bootstap. Their opinion counts for a lot more than a typical HN reader who might see it several times a day (obviously this isn't true if your market is HN readers).
Plus, is it really a problem that every app looks the same? I consider that a feature. If i run a program on windows i expect it to have the same type of buttons as every other program. Why should i have to relearn what a button looks like just because someone feels that their app has to be unique.
