Why the default for discovery schema is to use booleans as ints? Aren't the filters like this faster using bitmaps indexes?

WHERE condition1 = 'true' 
AND condition2 = 'false'
AND condition3 = 'true'

I noticed

druid.expressions.useStrictBooleans

is deprecated, so soon the only way to use booleans as strings will be explicit schema, right?