I have SRAM 11 speed, and honestly don't need that many gears. 42T granny gear with 44T chain ring, almost 1:1, is too much torque on dirt, just spins out, and it's way more torque than I need on any paved road around here no matter how steep. While holding throttle in high gear, I run out of pedal resistance and can't do anything to add my own power. With a bigger chain ring, I'd have higher top speed. However I would only want that on road, and I could only legally do it off-road.
The recent problem I had, derailleur getting caught in spokes, only happened because derailleur was already out of position after a tumble. Yeah, it couldn't have happened with IGH, but it also wouldn't have happened if I'd had the presence of mind to inspect my bike after the crash, instead of assuming that if I was fine, it must be too. For what it's worth, I could bend everything back into place and keep riding, but fatigued metal would be more likely to give me a serious problem later.
And of course clean and lube chain, but you knew that already.
PS: How'd Tannus work for you? The way you wrote your intro, it kind of sounded like the armour failed and you got a flat already, but I think the failure you referenced was the IGH.