A rule that doesn't say if it includes other options ... doesn't say if it includes other options.
It is false that RAW says "there are other options".
It is false that RAW says "there are no other options".
"It doesn't exclude X, so X is allowed" is adding to the rules as written.
When reading RAW, if you don't admit the wording doesn't cover a case (either way, permitting it or banning it) as a possibility, the result is nonsense. (English, and all sufficiently powerful formal systems of describing rules, are guaranteed to have such cases, so not admitting their existence means your reading will be nonsense)