No I did not specify, I bought 2 extra derailleur hangers but I got 4. There will be a bag of spare parts, I'm not sure what is standard. Similar thing with my 696 gravelbike, I got a lot of spares from. Them.
if you have already ordered but it is not on its way yet you can just mail them to edit your order and add some specific parts. It is easy!
(and maybe if you're going to, would you be willing to add an extra bottom cable guide x2 for me? and forward them by the time they are here? I'll cover the cost)
What you're telling me suggests a certain disconnect between the sales department and the shipping department. My salesperson was "Katie". The inclusion of spares was something I dealt with in specific terms. I asked for (and paid $5 for) an extra derailleur hanger. Likewise with an extra seat post clamp (which she forgot on the final invoice, and has promised to include free of charge). I don't know if being specific screwed up any hope for getting a grab-bag of spares, or not.
I'm not planning to use a front derailleur, and my rear mech will be SRAM AXS, so the only reason I'd have for removing the bottom plate would be to increase access when routing the rear brake hydraulic hose, though I suspect that won't be necessary.
My gut tells me that querying "Katie" about the contents of a bag of spares would be fruitless...or perhaps even counterproductive.
I don't have any issue with mentioning to her that I heard from someone else that the guides on the bottom bracket cover can be fragile and broke during installation, and that I would love to have a spare. We can see what happens.
While we're talking I have a couple of questions based upon your previous response. Do you think the SRAM 12-speed rear mech for a 10-36 cassette will conflict with the chainstay? And when you talk about the trouble you had with the rear thru-axle on the cassette side, do you mean on the cassette side of the bike (right) or the cassette side of the right chainstay (left)? Was the part you swapped part of the derailleur hanger assembly on the right chainstay, or something else?
My frame has to be painted so it's not likely that anything will be shipped for a while.