I wonder how much longer SIA management will take to learn that they need to fix:

The website so you can book.
Premium cabin service so that reasonable meals are on offer.
Provide customer service feedback like they used to 5+ years ago when things go wrong.
Recognise that they have made numerous mistakes over the years and they have lost many loyal customers.
Recognise that they will have to work very hard to win back customers from other carriers by offering better service at more competative prices and then offer incentives for them to stay.

It's not really surprising that they are losing so badly, they had an excellent product but they started to believe that we would buy it no matter what. Have they yet woken up to the fact that we won't and we will go elsewhere?

I'm not sure.