Yes, weather reports can come to an InReach. I saw that happen to Manfred’s InReach last weekend. I have a PLB for the reasons stated: no subscription fees, robust, water-proof construction, long battery life while transmitting.
But, as an example of how a messaging beacon can be helpful: Manfred & sons were hiking for a month in the Brooks Range two years ago. Really fricking remote. And a tent failed. In an unrepairable way. Manfred messaged me, I posted on BPL, and paypal’ed a BPLer. They sent their tent to Manfred’s air taxi service. He was up and going after their next resupply. A PLB couldn’t have addressed any of that.
Or, the case of friends up here who got stranded on a glacier for 4 days. Sure, the panic button would have started the SAR gears into motion. But it wasn’t flying weather. SAR and the skiers were able to communicate with each other about what was happening (a ground crew had started to ski in, while air crews were awaiting flyable weather). When you’re stuck in a snow cave for 4 days, out of fuel, food, getting cold, and forgot to bring a deck of cards; knowing the status of SAR efforts goes a LONG way to providing some peace of mind.
I’ve been 40 miles past the North American road system, 7 miles past the last native village, stuck on a remote salt water beach because the boat sunk, but hesitant to press the panic button on my EPIRB (which is ALWAYS in my lifejacket!) because the flying weather was bad, we weren’t in a life-threatening situation, and I didn’t want to put rescuers in harm’s way. Thankfully, my 2-way VFR radio is also ALWAYS in my lifejacket and we were able to hail a passing ship and they picked us up. But a messaging device could have sent a “we’re cold, a bit worried, but not in any immediate danger, and would appreciate being picked up when it’s safe to do so” message.