Haha, after 2. Nf6 black loses after 3. e5, after 2.d5 black loses after 3. d4
black loses... black loses... black loses...
27/28 for black... so what does this mean? To break it down for you: White is losing in the alapin more than black.
The alapin is somewhat playable but it just isn't very good. When black is winning more games than white that just shows how poor of an opening it is.
The reason it offers black the best winning chances is because it creates an imbalance where black prevents white from establishing a broad pawn centre from the flank. This means that black hasn't committed their central e and d pawns like with e5. This can prove to be an advantage as it offers black a better central pawn structure than white.
The alapin attempts to bypass this by preparing d4 with c3 but it just doesn't work as black can easily inflict an isolated queen's pawn on white giving them worse structure anyway.
You can see from the stats that the alapin is just objectively not as good as the Open Sicilian. The alapin is mostly for passive, amateur players who want to avoid theory.