Because Zahabi came back from his beating to not only win but dominate while Aldo was all but pleading for the clock to run out and had literally given up. If certain Sherdoggers weren't blinded by emotion and saw this exact thing happen in any other fight they'd agree and deep down inside you know this.
Again, you can't say a fighter who's getting pummeled and the ref stops it early has the right to keep competing and still try but then turn around and say everything that happened after Aldo gassed and got dominated shouldn't count. People doing this are literally arguing against themselves.