Funny that Yu Suzuki stated that he feels bad that companies are making games for a rising market, also considering YS Net's only games are mobile... its a even stranger quote.
I think it's more concern that mobile games ARE the growing market, rather than annoyed that people are making games for it.
If it weren't such a huge and rising market we'd see more people making larger and more ambitious games is his thinking.
As for YSnet, he probably makes those games because that's the scope his small team can handle, but based on his concepts he spoke about and this interview, he probably loves the fact that he has an opportunity to work on something big again.
He even said this is the most excited he's been to work on a game in a long time.