Avoiding a war by dropping corp is definitely worth stripping all benefits a corp can provide for a duration.
Otherwise any war is made null and void at a stupidly low cost (and you think wardecs are cheap).
Even if you make corps expensive, its only a one off fee and i can make unlimited alphas to be ceo’s of as many corps i can afford and switch freely as many times as i like.
A system that greatly favours the rich and alt heavy over newer poorer players. Where as a cool down is flat and fair to all.