I just don’t think a camcorder (unless you’re going high end) can compete with a device who’s camera is better with each passing year. It’s just too convenient to have one’s iPhone or iPad on you, and press record (with a good mic and/or interface). The iPad recording (for me) is nice because if I want to edit, I dont have to airdrop some huge file from the phone to the iPad. The recorder IS the editor. That said, a camcorder is less conspicuous in some situations and when that’s called for, I use the iPhone.
Many reviews talk about photo quality between say android devices and iPhones, but almost every review says ios video is second to none.