Dread mob ability discrepancy?

Building up a 2Kpt Dread Mob list and noticed this difference in wording between Try Dat Button! and Press It Fasta! Dread mob mentions that weapons in the unit gain that ability however Press It Fasta specifies ranged weapons.

While the unit I'm running it with is ranged (big mek with tank bustas) does this mean Press It Fasta forces the effects to ranged only or does the unit keep it with melee as well?