Even if it were different for matzah (I need to look that up), Matzos used to be thicker and softer.
Twisted, please, don’t throw the Nodah Bi’Yehudah and Mishnah Berurah, as well as the Chazon Ish under the bus.
Many posters here are ignoring the fact the larger shiur is based on major poskim who knew every source and sevara that any of us can think of.
If your rav tells you that you can be meikil, fine, but don’t disparage the very great people who had a more machmir approach, by implying that their shittos are c”v based on ignorance.