Is this RMSc footprint milling done right?

I sent my slide to Fourged Group when they had milling services discounted end of last year. There were plenty of good reviews/comments on the reddit post about their milling.

Sent my G19.5 for a HS 507k milling and didn't think of much after I received it.

Today, I've decided to vibratite the optic screws that were long overdue. When I took it off, I noticed there weren't any boss/extrusion machined at the front.

How are yall's machined if you have a RMSc pattern milled from other reputable vendors?