One year later and now we have this:
smart.com.ph
I guess Apple’s strong arm tactics do work.
P.S.
The new SIM Card Registration Act sucks, though. I think Airalo, etc. have also stopped offering their services in the Philippines because of the new law.
P.P.S.
Watched some YouTube videos and it seems SIM switching is pretty easy on Smart. Easier than trying to find a paper clip or SIM card eject tool to pop out your SIM at least. You just need the eSIM QR code (either by keeping the actual card itself or using a photo). First delete the eSIM from the active phone, then add the eSIM by scanning the QR code on the new phone. Easy peasy.