Brevity maybe, but ease of understanding no. Copyleft licenses interact with copyright law in ways that permissive licences just don't need to. The closest you can get is probably MPL-2.0.

The GPL is particularly bad here as it pretends to define what is or isn't a derivative work, which is outside the scope of a licence but within the scope of a court. The EUPL was created partly because EU directives bound the viral clause in ways the FSF won't admit to, although that one isn't simple either (I'm not a fan of its compatibility clause).