(@ AndraÅ¾ 'ruskie' Levstik)
"teufel being an interesting option"
There's a name that inspires confidence! ;^)
"I wonder if other such kits have similar issues??? [...] ElReg's research idea???"
Don't bother, all of them do, at least potentially. Any product that relies in updates and/o external servers to function properly can receive the same treatment, when some management asshat decides to "create value for the investors" by ripping off their customers one way or another.
So, it's basically a Russian roulette, with few empty chambers. :-(
I, personally, favour the option of not buying -among other things- IoT tat.