Tony Vargas
Legend
5e was intentionally written in natural language. So a spell that conjures up fire may or may not mention or ipmly or state in rules-sounding verbiage, that it will or normally can't set fire to a creature's clothes or a bale of hay or whatever - it's up to the DM to interpret and make a ruling.I'd actually think that RAW was intentionally written like that. There are spells that can't affect objects at all (Magic Missile). There are spells that can ignite object that are not worn or carried, but not damage them (Flaming Sphere / Fireball). There are spells that can damage objects that are not worn or carried (Shatter). There are spells that can ignite and damage objects that are not worn or carried (Fire Storm, Delayed Blast Fireball and Meteor Swarm).
The rules were intentionally written to be readable without learning a new gaming jargon (though maybe not without having some familiarity with the de-facto patois of D&D in general), in natural language, and to be used as a starting point by the DM, not to be fetishized and cynically leveraged as 'RAW.'