The rules they have are for practical reasons (whether you agree or disagree with them). It isn't as important to them whether it is perfectly consistent with the letter of the law as whether it fits with the purpose of the rule in the first place.
This is a very good book on the subject: https://en.wikipedia.org/wiki/Technopoly.
It has three kinds of relationships a culture can have to technology:
tool-using culture: the culture is dominant, tools are used to solve problems and are sued to serve the culture, not attack it.
technocracy: tools attack and change the culture, but the culture still has some force to it.
technopoly: the tools are dominant, and all of culture and humanity must submit to them and their needs. A "totalitarian technocracy."
The Amish are a tool-using culture. General western society is a technocracy or technopoly.
Automatic elevators, timers, an odd definition of inside, pre-torn toilet paper it's all fascinating and clever.
As someone who is not religious at all I find it fascinating.
[1] https://www.thejc.com/news/community/new-golders-green-eruv-...
I personally think this has entered the realm of absurdity, but there's admittedly a certain charm to it.
I think there is still something in common with the Amish approach, in that whether a theoretically possible loophole is allowed in practice often comes down to rabbinical judgement over what the practical consequences would be.
And, just like different Amish groups have different rules, different subgroups within Orthodox Judaism differ over the set of "loopholes" permitted – e.g. some Hasidic dynasties are much stricter about certain areas of halacha than others