Sound familiar?
No, no it doesn't sound familiar at all. Syncing with my desktop was a nice luxury, but not a necessity. More of a back up than anything, the Palm Pilot and Newton were useful as a standalone device (Pocket PC? Eh, not so much).
Slow? Is the author too young to have used such devices and just looking at CPU clock speeds? For the tasks for which it was designed, a Palm Pilot would run rings around any device I use today. Check my task list? A button on the front of the Palm. iOS or Android? Unlock device, search for app icon that hopefully is on the front page. Tap icon, wait for it to load and then go find it's "cloud store", bunch of back-and-forth while the two sync, then you can use the app. Now, the difference is pretty small on modern mobile CPUs and LTE, but the Palm still wins and certainly is not comparatively slow.
Awful battery life? Now the author is just making shit up. A Newton would run for weeks on some AA batteries. I've got one on my shelf that hasn't been turned on in a year. I'd bet a paycheck that I could grab it today, hit the button and it would power up. Try that with your iXuslaxy 12 in 12 months time. Don't recall good numbers on the Palm, but I can guarantee you that I wouldn't abide putting a new pair of AAs in it on a daily basis, so I'll assume it would run for multiple days or weeks on some batteries. Pretty sure early Pocket PCs needed to be charged daily...just like modern mobile devices, so that's a wash and a long way away from "awful battery life".
No, I didn't finish the article with that opening salvo.