The V1 was not a ballistic missile - it was more like a cruise missile. The V2 was a ballistic missile.
My doubt is: Is this new missile guided? (I guess so, but it's strange that the article compare it to a V1.)
And this is when V-1 costs comparable to prop fighter, and V-2 like strategic bomber.
Because of these flaws, even Germans don't use they really much, and US just forgot about them.
Even Soviets planned to use missiles mostly for air defense and as NUC carriers.
But approx in 1980s, with new technologies (mostly, digital computers, but also, high frequency radio and high precision frequency generators, for example atomic time), appear high accuracy navigation systems. For example, claimed accuracy of Minuteman is about 10 meters, and Himars MLRS 1 meter.
As example of Himars MLRS usage, attacked bridge near Antonovka Ukraine, made few holes in road, so it become impossible to drive by truck, but pedestrians could pass it.
For about "trembita", I'm sure this is just propaganda, because cheapest military grade navigation cost about 10k$, and make 25kg explosive with civilian navigation is just crime.
Yes, I know, Iran make drones with 50kg explosives with civilian navigation, but they already got sanctions for this. I don't think, Ukrainian leaders will wait for sanctions if "trembita" will be produced in series, most probably, will just appear few new dudes, jailed "for nothing".
And unfortunately, it is not much threat for Russian military.
Iran/Russia use so low tech, just because they already under sanctions, and for them additional sanctions will be negligible.
Ukraine totally different case, even brake NATO/EU integration, will kill many Ukrainians, but sanctions will kill Ukraine.
If something very bad done by Iranian or Russian terrorists, this is not meaning, same done by Ukrainians will be tolerated by US or EU.