Yes and no. The glacis plate wouldnt normally have the bolts in it, but it would have the the bolt holes, so Russ just needs to make his smaller as they are oversized and do look like bolts as opposed to the bolt holes.
Tamiya didnt really get it wrong as it was thought for a long time. Initial Challengers did have a raised area in front of the dvrs cab on the glacis plate as you can see below. This is an initial Cr1 which was modded to Mk 2 possibly even Mk3 standard but never fitted with add on armour.
At some point during the production run of Mk1’s, the raised area was removed and the upper glacis became level all the way from L to R, so you will have some Cr1’s that would of had the step and also possibly never had add on armour or external fuel drums fitted that went onto become Mk2’s or possibly Mk3’s on the rare occasion.