No it's definitely a problem with the ARM architecture, specifically that it's standard to make black box SoCs that nobody can write drivers for and the manufacturer gives you one binary version and then fucks off forever. It's a problem with the ARM ecosystem as a whole for literally every board (except Raspberry Pi), likely stemming from the bulk of ARM being throwaway smartphones with proprietary designs.

If ARM cannot outdo x86 on power draw anymore then it really is entirely pointless to use it because you're trading off a lot, and it's basically guaranteed that the board will be a useless brick a few years down the line.