Sounds like it can be, but ...

In the second photo you posted, of the panel with the cover off, the metal bus (bar) which goes from the equipment grounds on the left to the neutrals on the right, is there a bond screw through the neutral terminal bar into that metal bar?

No screw. There is a strap attached to metal bar with screw into panel but not to neutral bus.

If not, than it might be okay (look closely to make sure the neutral terminal bar is isolated from ground).

It is isolated. See plastic isolation stand.

If yes, then look closely, it is likely that if that bond screw was removed that the neutral would be isolated from ground.

I can't tell from the photo.

When used as "Suitable for use as Service Equipment when main breaker is installed.", I'm guessing there will be an additional requirement to install a bonding jumper (typically a screw into that bar) to bond the neutral terminal bar to ground. Without that bonding screw, you are probably okay - look closely to make sure.