Ya. Merging 2A1 and 2A2 is a good move by MOE. Nowadays everyone's an alumni and every alumni can afford the membership. By merging the 2 phases, only the elite alumni can afford the properties within 1km, this helps the schools ensure only the kids of the real elites can get in, further widening the gap between good and not so good schools. Nobody wants to (after all those efforts of buying/moving house and birth right of being an alumni) send their kids to good school and end up hanging out with kids from middle/lower class... And this merger of phase helps mitigate (not completely eliminate) that.It’s actually even more likely to “buy” your way in now, cos with the 2A1 and 2A2 merged, it simply means now home-school distance has become more important than ever. Those with the means can simply move within 1km to secure a place.
Traditionally, 2A1 balloting happened for those residing more than 2km away. So these are the more average Singaporeans who don’t stay in expensive areas like Bukit Timah. I know plenty of HDB dwellers who went into top schools via 2A1. These people can afford to pay a few hundred for the alumni membership, but they won’t be able to afford a house in very prime area.