It's not as if Supercell doesn't care about war or hasn't done anything about modding.

They have done quite a few implementations to stop modding such as the attack confirmation page to stop sandboxing and not sending the packets or cc troops and traps/teslas until the real battle has started. There may be more but I don't remember them now.

The small things such as the 23h prep day, increasing wall/hero weight to balance the .5 villages and ensuring people get matched against the same th level are also nice. They also nullified the defenceless bases in this update unless you gem a lot. The addition of clan perks, while not adding anything specific to wars, it got the incentive to war to many casual levels, and the xp kind of offered reward as well, helping make the clan better by warring.

Even the Supercell events are mainly focused on war tournaments rather than pushing and farming. As for the arranged war matchups, I agree with Jonas that clan war tournaments implemented in the game would indirectly address that arranged matchups as well (showing and boasting how good you are in regard to the other clans, matching against the other serious war clans). Also, specific arranged war isn't what a majority of community would need. There are people who need it ofcourse, and that number may seem high on reddit and coc forums, as the people here are generally more active, but the considering the overall user base of coc, the percentage of people needing arranged war may be a whole lot less. Tournament on the other hand would benefit more people.

I'm not saying Supercell does a lot for the clan wars, or if it is their prime focus. But saying they don't do anything for us or ignore the war community. If iirc, Jonas also said something like this update would focus on pushing and other changes more, while a cw related update would come the next time.