That number is inaccurate.
A local PD ordered their’s a few months back… they took delivery of them last month.
Coincidentally, the order also included a few 43xMOS guns too. 26’s got RMR, 43x’s wear RMRcc.
Somewhere in this thread, you’ll also find I was the first guy to post a pic of the 26 Gen5 MOS. Local Glock LE rep’s sample gun.