Gert Well only Rabobank and ABN. No ING, no Volksbank (SNS, Regiobank, etc.), Triodos, van Lanschot, AEGON brands like KNAB, etc. etc. all are not participating. (Mind you there's a lot more banks than these. :P) So from that point of view, only a very small percentage of the banks support it - and Bunq currently isn't one of them. Of course with Rabobank and ABN on board a lot of the total market can still get their hands on it (I think roughly 47% of the market with the two of them combined), but all the same... It isn't strange not to support it at this time.
Oh P.S. Sadly but as expected, it looks like no Apple Pay in NL was announced today.