The option is not what frustrated me. Phrases like "miss out an option that most people need the most" frustrates me, because quite frankly, most users probably don't even think about it, let alone "need" it. Even if the entirety of this forums members needed it, we'd still be a minority against the entire user base.
By all means, the option would be very useful and it's a great suggestion, but it's certainly not worthy of the absolutes you are describing it by. It would be a nice to have for those people who feel the need to regularly turn off mobile data, which lets face it is something modern smartphones are designed to have permanently switched on.
If they'd forgotten to include the ability to have a messaging tile, then you could almost definitely argue that they had missed something most people need.