Matter-of-fact in a sentence as an adjective

Why does he state as a matter-of-fact that computer science is unquestionably the dullest?

No, that does not mean that Android is no longer "meaningfully open", especially not in the matter-of-fact way you are presenting it.

Matter-of-fact definitions

adjective

not fanciful or imaginative; "local guides describe the history of various places in matter-of-fact tones"; "a prosaic and unimaginative essay"

See also: prosaic

adjective

concerned with practical matters; "a matter-of-fact (or pragmatic) approach to the problem"; "a matter-of-fact account of the trip"

See also: pragmatic pragmatical